Something similar happened to me before, sat in a man’s house for a whole 30 minutes while he’s trying to transfer money to me and saying it’s sent when it clearly wasn’t, goes to get another phone- like that would make a difference- and tries again, shows me a picture (probably a made up screenshot) of money leaving his account. I ended up just leaving to his dismay as he genuinely thought I’d be giving him something for nothing, it’s not your problem to be dealing with, if the money has left his account then the bank can take action , also if it’s the incorrect details it comes up and won’t let you proceed any further