My brother, a bigger Matrix fan than I am, would like to play with me. We're now looking for another copy of the game in the city (I bought the last one on the shelf) and I was wondering whether its possible to pay for two subscriptions with one credit card since he doesn't have one. I have a second credit card I could use but that's not one I like giving details about online but if I do use the other one, would Sony allow a second subscription with a credit card registered to the same name?