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Documentation Index

Fetch the complete documentation index at: https://docs.laozhang.ai/llms.txt

Use this file to discover all available pages before exploring further.

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Enterprise Billing Overview

Laozhang API provides account credit management for companies and developer teams. For production use, enterprise procurement, contract billing, or invoices, contact support first to confirm account type, spending limits, and usage boundaries.

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Card and Bank Payment

Credit/Debit Card

  • Visa
  • Mastercard
  • American Express
  • Discover
Processing Time: Subject to console and bank confirmation Fees: None

PayPal

  • Support global PayPal accounts
  • Support PayPal balance and linked cards
Processing Time: Subject to processor and console confirmation Fees: None

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Cryptocurrency Payment

Cryptocurrency PaymentSupport mainstream cryptocurrency payment:
  • Bitcoin (BTC)
  • Ethereum (ETH)
  • USDT (TRC20, ERC20)
Processing Time: 10-30 minutes (waiting for blockchain confirmation) Fees: Network gas fees (user pays)

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Bank Transfer

For enterprise purchases:
1

Contact Support

Email: billing@laozhang.ai Provide expected usage, company information, and invoice requirements
2

Get Account Information

Receive our bank account information
3

Complete Transfer

Complete bank transfer
4

Submit Proof

Submit transfer receipt for verification
5

Account Credit Update

Account credit is updated after verification

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Account Credit Process

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Account Credit Setup

1

Log in to Console

Visit Laozhang API Console and log in
2

Confirm Account Type

Confirm whether the account is for development testing, internal tools, or production integration.
3

Confirm Billing Arrangement

Confirm the payment method, spending limit, invoice information, and procurement requirements with support or in the console.
4

Complete Verification

Submit payment confirmation, contract details, or transfer receipt when required.
5

Confirm Account Credit

Check “Billing History” or contact support for confirmation.

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Budget Controls

Use budget controls to avoid unexpected production spend:
1

Set Alerts

Configure account alerts in the console.
2

Set Spending Limits

Configure budget limits for production keys and internal teams.
3

Review Usage

Review billing history and call logs regularly.
Budget Control Benefits
  • Reduce unexpected spending
  • Keep production usage observable
  • Support internal approval workflows
  • Make billing history easier to reconcile

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Pricing and Enterprise Terms

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Volume Pricing

For high-volume users, we offer custom volume discount plans:
  • Monthly usage $1000+: 5% additional discount
  • Monthly usage $5000+: 10% additional discount
  • Monthly usage $10000+: 15% additional discount
  • Enterprise custom: Contact sales@laozhang.ai

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Invoice and Receipt

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Request Invoice

1

Fill Invoice Information

Go to “Billing History” > “Request Invoice” Fill in:
  • Company name
  • Tax ID
  • Address and phone
  • Bank account information
2

Select Billing Period

Choose billing period requiring invoice
3

Submit Request

Submit invoice request
4

Receive Invoice

Receive electronic invoice within 3-5 business days Paper invoice can be mailed (additional fees apply)

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Invoice Types

Invoice TypeApplicable RegionProcessing TimeNotes
Value-added Tax InvoiceChina3-5 business daysSupports deduction
General InvoiceChina1-3 business daysNon-deductible
ReceiptGloballySubject to record typeFor account credit records
Corporate InvoiceGlobal enterprises5-7 business daysEnglish or local language

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Refund Policy

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Refund Conditions

Can request refund if:
Refundable Cases
  • ✅ Unused balance (no API calls)
  • ✅ Duplicate payment
  • ✅ Mistaken account credit
  • ✅ Service discontinued
  • ✅ Account closed
Non-refundable Cases
  • ❌ Partial refund of used balance
  • ❌ Non-cash promotional credits
  • ❌ Expired balance
  • ❌ Violation account
  • ❌ Over 90 days

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Refund Process

1

Submit Refund Request

Email: billing@laozhang.ai Include:
  • Account information
  • Refund amount
  • Refund reason
  • Payment proof
2

Review Process

Financial team reviews within 3-5 business days
3

Approve Refund

If approved, initiate refund process
4

Receive Refund

Refund time varies by payment method:
  • Credit card: 5-10 business days
  • PayPal: 3-5 business days
  • Bank transfer: 5-15 business days

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Refund Fees

Refund AmountProcessing FeeExample
< $50$2 fixed feeRefund 48for48 for 50
50−50-5003% of amountRefund 97for97 for 100
> $5002% of amountRefund 980for980 for 1000
Free Refund Cases
  • Platform error
  • Duplicate payment
  • Service disruption
  • Account closure

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Payment Security

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Security Measures

PCI DSS Compliant

Payment processing fully compliant with PCI DSS standards

Encrypted Transmission

All payment data transmitted via HTTPS/TLS 1.3 encryption

No Card Info Storage

Do not store your credit card information

Fraud Detection

Real-time monitoring of unusual transactions

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Payment Information Protection

Our Commitment
  • ✅ Do not store complete card numbers
  • ✅ Do not store CVV codes
  • ✅ Use tokenization technology
  • ✅ Third-party payment processors (Stripe, PayPal)
  • ✅ Real-time fraud monitoring
  • ✅ SMS/Email payment notifications

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Common Issues

Common Causes:
  1. Insufficient Card Balance
    • Check card available balance
    • Try another payment method
  2. Card Expired or Invalid
    • Verify card expiration date
    • Check card number accuracy
  3. Bank Security Block
    • Contact issuing bank
    • Verify transaction is legitimate
  4. Network Issues
    • Refresh page and retry
    • Change browser or network
Solutions:
1. Verify payment information accuracy
2. Try another payment method
3. Contact customer support if still failing
4. Provide transaction ID for investigation
Check Steps:
  1. Confirm Payment or Transfer Status
    • Check bank/payment app deduction record
    • Verify payment confirmation email
  2. Check Account Balance
    • Refresh console page
    • Check “Billing History”
  3. View Processing Status
    • Some payments require processing time
    • Cryptocurrency payments require blockchain confirmation
Processing Times:
  • Credit card: Subject to processor confirmation
  • PayPal: Subject to processor confirmation
  • Cryptocurrency: 10-30 minutes
  • Bank transfer: 1-3 business days
If Still Not Arrived: Contact support: billing@laozhang.ai Provide:
  • Payment method
  • Payment amount
  • Payment time
  • Transaction ID
Split Payment Policy:Currently do not support split payments, but offer alternatives:
  1. Installment Payment
    • Use credit card installment (consult issuing bank)
    • Platform does not charge extra fees
  2. Separate Enterprise Purchases
    • Confirm each purchase with support
    • Keep each transaction and invoice record separate
  3. Corporate Monthly Settlement
Change Payment Method:
  1. For Completed Payments
    • Cannot change payment method
    • If refund needed, follow refund process
  2. For Future Purchases
    • Can freely choose any supported payment method
    • No need to set default method
  3. For Enterprise Billing
    • Contact support before changing billing arrangements
    • Confirm invoice and procurement requirements in advance
View Billing Records:
1

Log in to Console

Visit Console
2

Enter Billing History

Click “Billing” > “Billing History”
3

View Details

View all account credit, usage, and refund records
4

Export Records

Can export to CSV or PDF format
Record Contents:
  • Date and time
  • Transaction type (account credit/usage/refund)
  • Amount
  • Payment method
  • Balance
  • Transaction ID

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Enterprise Solutions

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Corporate Account

Provide specialized services for enterprise users:

Monthly Settlement

  • No need for advance account credit
  • Generate bill at month end
  • Support corporate transfer payment

Volume Discount

  • Custom pricing based on usage
  • Up to 20% discount
  • Long-term contract additional discounts

Dedicated Support

  • Dedicated account manager
  • 24/7 technical support
  • Priority problem resolution

Custom Invoice

  • Support various invoice types
  • Custom billing cycles
  • Detailed usage breakdown

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Apply for Corporate Account

1

Contact Sales Team

Email: sales@laozhang.ai Provide: Company name, estimated monthly usage, business type
2

Submit Materials

Provide:
  • Business license
  • Tax registration certificate
  • Legal representative ID
  • Corporate email
3

Review and Approval

Business team reviews within 3-5 business days
4

Sign Contract

Sign service contract, clarify terms
5

Account Setup

Configure corporate account, enjoy exclusive services

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Contact Support

If questions about payment:
  • Email: billing@laozhang.ai
  • Customer Service Phone: +86 400-xxx-xxxx
  • Work Hours: Monday-Friday 9:00-18:00 (UTC+8)
  • Online Support: Click chat icon in console