[timoty]

This is a new security measure. One guy wrote me that even uploading the ID document they said that it doesn't work. They can also keep the ID informaton somewhere and then when you create a new Amazon account and do it again, they will link it and bammm you get a OFM saying your account will be closed cause they find that the ID was used on the other account. Amazon is good at linking accounts.

but do they ask for IDs for any return or for an unsuccessful return?

They can ask for ID after you return the item to get a refund. It's for over 300 euros return. Reddit is full of posts for people complaining for this

ok, thanks