Hello Naji,

Thank you for reaching out to us.

Please log in to http://store.tms-plugins.com/ and under "My Licenses" click on the Three Dots on the right-hand side of the license :

After you submit a refund request, you will not receive any confirmation emails, but you will see that the button is grayed out:

That means that the refund request is successfully submitted and that you will receive your refund in 5 - 7 business days.

If you need some further assistance, please don't hesitate to contact us.

Have a nice day!