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

# Unable to Process Payment Request

## Overview

**400 - Bad Request**: We were unable to process your payment request. This could occur due to provider downtime, a server error, or an unavailable service. We sincerely apologize for the inconvenience and recommend trying again later.

```json theme={null}
{
    "success": false,
    "message": "We apologise as we were not able to process your payment request. Please try again later."
}
```

## Common Causes and How to Resolve

1. **Provider Downtime**
   The error might result from temporary unavailability on the provider's side.

   **How to Resolve**:

   * Wait for some time and retry the request.
   * Retry the request with a different payment method if the specified country has multiple payment methods supported.
   * If the issue persists, please contact our support team at [support@niobi.co](mailto:support@niobi.co) for further assistance.

2. **Server Error**
   A temporary issue on our servers could prevent processing your request.

   **How to Resolve**:  Retry the payment after a short interval. If the issue persists, contact support at [support@niobi.co](mailto:support@niobi.co) for further assistance.

3. **Service Unavailability**
   The requested service may be unavailable temporarily due to high traffic or maintenance.

   **How to Resolve**:  Ensure that the payment method or service you are using is currently supported. Check the [api reference](/api-reference/introduction_v3) for more details.

***

## Best Practices

* **Check for Updates**
  Monitor your email or communication channels in case of any updates on system downtime, or scheduled maintenance to avoid any inconvenience.

* **Verify Input Details**
  * Ensure that all payment details provided in the request are valid and complete.

***

## Additional Resources

* [API Rerefence Status API](/api-reference/introduction_v3)