Good evening Blessnaught,

While I’m afraid I can’t offer you any guarantees, if this card functions in exactly the same way as a normal MasterCard (that is to say, it has the same number of digits as a regular credit card, and its payments process in a similar way) then it’s quite possible that it may work for our Character Services.

Unfortunately I cannot provide anything more concrete than that, but if you ask around you may find other players who’ve tried and either been successful or can warn you in advance that it’s not a good idea to proceed! Good luck. :)