Where can i get ms points in South Africa?

I need at least 1000ms points, because I want big surf island for Burnout Paradise, but the problem is that you can get xbox live here, but you cannot buy pre-paid amounts/ codes or use your credit card. There are a few people that have used a UK postal code for their address and credit card info. Please tell me how to do this, I need ms points badly. So could you please tell me how to do the credit card thing or tell me some freebie sites that can be used internationally. NOT: REWARDS1/POINTS2SHOP/GAMING LAGOON......etc