I think the above post is correct - it's MasterCard themselves who block casino transactions, not the individual banks.
(I'm not 100% certain about that).
The only casinos I've used a Mastercard at recently are those linked to bookmakers sites which seem to be exempt from the 'ban' for some reason.
The only MG's off the top of my head who fit this are Ladbrokes and Intertops.
(Maybe someone else knows some more...?)
I would really recommend though that you seriously consider an 'online wallet' such as Neteller, etc...
Takes a few days to set up, but then it's so much easier and you'd be good to go at ALL MG's!!
