Hello Paula.
We will try to contact you through the mail, but unfortunately, we do not receive any response.
To solve the problem with the lost cashback, you must create a query yourself, in your personal account, in the "Orders and Finances" section, filling in the form (from the web version of the mobile phone or from the computer).
You can always find the answer to other questions in the "Help" section of your personal account.
Sincerely,
LetyShops team