I'm not sure if there's another means of doing this if you've already deleted the games from the phone, so I'll just give you a definitely answer by telling you to call Customer Service. Customer Service has access to a list of all active subscriptions, and they can halt them with literally a few clicks of a mouse. The only thing to keep in mind, however, is that you may still see them on your bill if they've already billed again for the new bill cycle.