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

# FAQs

> Before contacting support, please check our Frequently Asked Questions (FAQs) below to quickly find the answers you need.

## Payments

### **1. How can I prevent top-up failures?**

Top-up failures typically stem from two primary areas. Please review the relevant points below to quickly resolve the issue:

**A. Issues with Your Card Issuer (Bank)**

These failures are generally caused by your bank's side. **Please contact your card issuer** to check details related to the following common reasons:

* **Payment Channel Status:** The corresponding payment channel may not be activated for online or international transactions.
* **Card Status:** The credit card may have expired or been frozen.
* **Insufficient Funds:** The credit card balance is insufficient to cover the transaction.
* **Incorrect Card Details:** The card number or security code (CVV/CVC) entered is incorrect.

**B. Issues with Payment Channel Risk Control (Stripe/Processor)**

These security measures are implemented by the payment processor to prevent fraud. Please check your account settings and contact us if you need further clarification:

* **Card Association:** The device ID you are using is associated with a high number of different cards.
* **High Decline Rate:** The number of cards that have been declined while associated with your email address is very high.
* **New Card/Device:** The time since this card was first used on the payment network with this device is very short (a common fraud indicator).
* **Low Authorization Rate:** The overall authorization success rate associated with your email address is unusually low.
* **Name Mismatch:** The name on your email address does not match the name on the credit card.

### **2. What is Siray’s policy on refunds and credits?**

If you have questions before committing, please join our [Discord ](https://discord.com/invite/CmSbUzPSVP)or email [contact@siray.ai](contact@siray.ai).

You can start with a top-up of just \$10. **We currently do not offer refunds or trial credits.** Please plan your initial commitment accordingly.

### **3. Can I withdraw the free credits?**

No. Free trial credits provided upon registration are limited to designated services and cannot be withdrawn, transferred, or redeemed for cash.

### 4. Do you offer discounts?

Yes. Volume-based discounts are available for high-usage customers. If you are a large-scale purchaser, please email [**contact@siray.ai**](mailto:contact@siray.ai) to request a discount.

## **GPU Instance**

### **1. How can I check the pricing for GPU instances?**

You can view detailed pricing information, including container disk, volume disk, and network volume costs, during the instance configuration process.

### **2. When does billing for a GPU instance begin?**

Billing begins once the instance status changes to “Pulling.”

## API Service

### **1. What are the rate limits for the API service?**

|                    | per min       |
| ------------------ | ------------- |
| Image Generation   | 500 images    |
| Videos Generations | 60 Videos     |
| LLM                | 1000 Requests |
| Max Concurrent     | 100 Tasks     |

### 2. Can I use the generated outputs for commercial purposes?

Each model has its own licensing terms. Most endpoints available on [Siray.ai](http://Siray.ai) can be used for commercial purposes. Please refer to the model’s official website for detailed license information.