Einkäufe bei Kiwi.com mit Cashback

A very strange trend is observed. I decided to book myself a flight with transfers on this site. And before buying, I saw that you can arrange cashback. He added a pre-flight to favorites and went to the LetyShops office to follow the link. After clicking on the link, when I try to open a flight from my favorites, it says to me that it is no longer available. Then, when you try to manually score the search terms - the flight you are looking for also fails. Even if you reopen the site in a separate tab, the data is already cached in the browser and still shows that it is no longer possible to find such a flight. I managed to fix it only if I open it in incognito mode or I clear the browser cache (but then I lose the opportunity to get cashback). The bottom line is that using cashback with this site was in principle not possible in my case. I can not say that Lety or Kiwi are bad, individually these are both good services in their field. But only among themselves, they clearly do not work very well.