Payment Methods

Hey there,
after like 3months without ac2 (missing grish so hard, time to untrain!) id like to return. i just wanted to ask if there is any other payment method in the makings others then Credit cards ( since mine doesnt work right now). i dont know how these game time cards work (and if i can get them here in germany anyways).

would like to get back to this fantastic game. thanks for helpful answers in advance.