I will tell you what can go wrong, you can send your own identity for verification, and they can be unaccepted for undisclosed reason. Many years ago, I have sent documents to receive tokens, but they were rejected. It was simply written "failed passing KYC". The project gave only one attempt to pass it, and they never explain why and where I have failed. Same thing can happen anywhere and with anyone. User can simply get failed to pass nobody would bother giving any explanation; sometimes they dont even have to explain anything at all. Just fail and bye-bye.