And we do appreciate your communication. I'm sorry if I was rude before, it's the stress
However, there are alternatives which *should* work for you. Already mentioned PayByCash and SuperRewards. Is there any reason you don't want to use those?
Did you try? Go to http://www.buzzerbeater.com/store/superrewards.aspx, click on "credit card" and buy as many Supporter points as needed using your card. That should do it. Unless they too have different rules for Sweden (hopefully not).
Try the link I provided. They are disabled because you don't have enough Supporter points. Once you do, they will become available.