Q. My business is located outside of the US, Canada, and EU regions and I currently accept MasterCard. How will this affect me?
You will no longer be able to accept MasterCard for payment beginning May 24, 2013. If feasible, relocating your business HQ to one of those covered regions would enable you to begin accepting MasterCard again.
http://www.ccbill.com/cs/mc_faq.htm