Wallets isn't accessible
Do you mean there's a wallet generator in their interface and it generates a new wallet upon order then he gives them that wallet private key manually as notes? Why? As long as they need it why not recorded internally? If it's the case return to prev question why then paid and to who?
Actually, it seems I was wrong about that part in my previous reply. Such a system of notes has not yet been implemented and is planned with the introduction of ZK based Notes:
With the introduction of the ZK based Notes we won't have this issue anymore because the user will be the only person to have access to it, same as now, but the difference is that in the ZK Note case there is no way we can ever do something about it because your deposit will be one of *Anonymity Set value* deposits and we would have no way of knowing if you withdrew already or any other detail. If you lose it, it's on you.
I made the wrong conclusion, and I believe I've read other comments stating the same thing, suggesting that such a system is already in place.