Hi Agnes!
We are sorry that you had such an experience with Just Eat.
The loss of cashback can happen due to several factors: violation of store terms, prolonged payment (more than an hour), use of promotional codes. Also, if you have other extensions installed in your browser, except for LetyShops, we recommend that you disable them before ordering (for example, Adblock). We hope that our advice will help you with your next purchases.
Cheers!
The LetyShops team