It's the strangest thing. Every time I go through my balance section, I end up at the e-centru portal to payment (where you can still pay by Mastercard).
The only problem is... that I don't have one. Wouldn't be a problem to get one though. I almost get spammed by my own bank in their continous effort to convince me to get one.
But it is still very easy to buy vouchers here and a lot of other places on the web:
http://www.museekster.com/allofmp3payments.htm - so for now this is fine.
For the record I'm not American but located somewhere in Scandinavia. where it almost gets as cold in the winter as in Wisconsin

But thanks for thinking that my first language might be English
solaris