Having issues with setting up my payment method on my iPhone, cause am from Nigeria

I tried making payment to my Apple ID wallet it seems not to be working out cause am from Nigeria, so i used Visa card to make the payment it got declined each time i tried, here in Nigeria not that easy to get a dollar account, we use Naira method to purchase our online transactions here in Nigeria, please would be glad if a method for Nigeria Naira payment method is been updated, or if there is please kindly introduce me to that, so i can start using pay service on my iPhone to purchase online items,

like for example in Facebook today there’s a Naira pay method which could enable u to use your visa, & master card to purchase a product online, & it was great that has helped many in different angle, & that enabled them to make more money from we Nigerians