If for some items food/drink you don’t have a receipt you can claim, but max 10 Euro.
It says in the policy if you buy dinner for example, which is > 10 euro, you need to show a receipt.
If on the same day you also have lunch or evening food without receipt, you can claim it , but max 10 Euro.
In the past I have claimed like this several times without any problem, so not sure why this has changed now.