Billing and Payments
How pricing works, when cards are charged, and what to check when a payment fails.
KiteCourier uses a two-step payment flow so successful mail is what gets charged.
Pricing basics
Your letter cost depends on:
- the USPS Certified Mail base rate,
- included pages versus additional pages,
- print settings such as single-sided or double-sided output, and
- optional services such as return receipt.
How payment processing works
- Authorization: the card is authorized for the expected total when you submit the letter.
- Capture: the charge is captured after the letter is accepted for mailing.
- Release: if the letter cannot be sent, the authorization is released or refunded automatically.
Troubleshoot payment failures
Card declined
- Check available balance or credit.
- Confirm the card is not expired.
- Verify your bank did not block the transaction.
- Retry with another payment method if needed.
Invalid card details
- Re-enter the card number carefully.
- Confirm expiration date and CVV.
- Make sure the billing ZIP code matches the card record.
Unexpected processing error
- Wait about a minute before retrying.
- Check whether the charge already appears on the statement.
- Refresh the page and try again.
Accepted payment methods
KiteCourier accepts major credit and debit cards, including Visa, Mastercard, American Express, and Discover.
Need help with a charge?
Share the letter ID or transaction reference so support can trace the payment quickly.