If you want your content to be paid by SMS and you want to avoid the hassle to get and maintain shortcodes in a lot of different countries, we might have the solution:
Take a look at www.daopay.com - DaoPay is the way to pay.

Its a flexible payment service with shortcodes in various countries - and the best is that all shortcodes are free - without any fixed or monthly fees - for you to use.