I sometimes have a little fun playing bingo, through an online casino. A few weeks ago I won a fairly decent sum of money (£1509). The casino is now asking for verification details (photocopy of passport, utility bill and front of debit card,) I understand this is commonplace now with online betting so I’m not concerned with the bookmaker, the problem is that they only communicate via email. No other methods of sending information are possible. I have been through this with their support, but I’m getting nowhere.
It’s obviously insecure to send these details through email, but if I obscure some of the information on my card, how risky would this be?
Is there any other technical suggestion that I’m missing?