Hello Antonio.
We understand your displeasure and are sorry that this situation has occurred. It is true that there are incidents with cashback, but we never leave users without a solution and answer. We see that we have already credited your cashback. You can check it in the "Orders and Finances" section of your account.
We very much hope that this does not happen again and that you will not be disappointed anymore.
Sincerely,
LetyShops team