Cashback is credited for booking of hotels and apartments only.
Booking.com is very good, however Letyshops does not always credit the cashback and if the cashback isn't credited when booked the only way around it is a paper receipt from the hotel. recently I made 4 separate bookings via mobile app, 3 of which were not credited. Letyshops have closed all the complaints I have filed. It's almost like jumping through hoops on fire to get £5. No thanks.
Yes, partners can accept a claim only with a a printed receipt. This condition is available on the transition page.
The information about your booking from 22.10 appeared automatically. Cashback will be credited durinf 90 days after departure from the hotel. As booking from 08.06 was made without a transitions, cashback did not appear. If there are any other questions, you can always contact our support team in the Help section.