Hello, thank you for your feedback.
We have tested the Contact Us form on our side, and the submission function appears to be working normally at the moment. We have not been able to reproduce the issue you described.
To help us better understand the specific problem you are experiencing, could you please provide a screenshot of the page when the submission fails? It would be especially helpful if the screenshot shows the completed form, whether any error message appears, and whether the Submit button is clickable.
In addition, please let us know the browser you are using and its version, as this will help us check the issue more accurately.
Regarding your refund request, please rest assured that we will continue to review it based on the information you have provided and assist you accordingly.