> ## Documentation Index
> Fetch the complete documentation index at: https://docs.auriko.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# payment_declined

> HTTP 400 — Card declined, expired, insufficient funds, or incorrect details.

## HTTP status

`400 invalid_request_error`

## Typical cause

The card used for payment was declined by the issuer. Common reasons include expired card, insufficient funds, or incorrect card details.

## Resolution

Try a different card or update card details. If the issue persists, contact your card provider.