Yes, you should be eligible for a refund from CSAB if your seat was canceled due to an inappropriate category certificate in Round 2.

The CSAB refund policy typically states that candidates will receive a refund if their admission is canceled due to reasons beyond their control, such as incorrect or inadequate documents.

However, it's important to note a few points:

• Timeline: The refund process might take some time. Ensure you follow the CSAB's guidelines and deadlines for submitting refund requests.
• Documentation: You might need to provide evidence of the cancellation due to the inappropriate category certificate. This could include official correspondence from the college or CSAB.
• Specific terms: The exact refund amount and process might vary slightly depending on CSAB's current rules and regulations.

It's highly recommended to contact CSAB directly or refer to their official website for the most accurate and up-to-date information regarding the refund process. They will be able to provide you with specific instructions and guidance based on your situation.