I originally signed up for Casino770 when I saw it advertised as having a £10 no deposit bonus. I played through the 30x wagering requirements and won about £160.
However, when I tried to withdraw the money though I was told on the live chat I had to make a deposit first and then I would be able to withdraw the money on to that card. I then made a £30 deposit (the minimum possible) and was credited with another £30 bonus which prevented me withdrawing any money.
I contacted them and asked to have the bonus removed (as I had not used it) so I could withdraw the money. I was then told that I now had to wager £900 to withdraw any of my money as the bonus could not be removed! I said that was shocking and they had misled me put they kept saying it was all in the t&cs.
This argument pursued for ages before I eventually couldn't take any more and as I had actually only lost £30 I just stuck it on autoplay expecting to lose all my money.
When I returned I actually still had £100 left which I then attempted to withdraw, but kept being met by a "withdrawal processing error". I phoned them up and asked for them to process my withdrawal but I kept being told I had probably not wagered enough even though that shows up with a different message saying you haven't met the wagering requirements.
I have now been waiting for 2 days for them to get back to me with an update as I still can't withdraw my money.
I'm not sure if they are actually crooked or just massively incompetent but I would advise to stay well clear if you still want to have your sanity!
