Allopass (our sms/phone provider) is doing some final testing and we should open some South American countries very soon (unfortunatly, not brazil yet... :/)
Generally speaking, we DO want to provide SMS/Phone everywhere, but some countries refuse it totally (SMS in italy for example) or are not yet ready. If you know any gaming website that provide SMS/phone payment in a country that we do not support, please send us an email with a link to the website.
Why are all the costs different in different countries?
0 Wiivja pays 5€/40credits(norway), i pay 3€/40(belgium)credits and United Kingdom pays 2.5€/40credits...
Is it fair to make people pay much more just so you can get your cut of the deal? I think this game is a goldmine annyway, so why not make people pay the same amount for the same amount of credits...
As I said, various countries are just not ready for SMS payment yet. We are working hard on opening new places.
Prices depends on a) a great deal on country sms+ volume (our partner does get a much better deal on france than poland for example), b) also country "cost of life" (I'm not sure I spelled it right). c) phone operator "share" (wich can be up to 70%!!!)
We are always trying to improve the prices and be sure we do want to open as many countries as possible.