I tried registering my MasterCard to pay for dollar transaction on Facebook but it was denied by Facebook. This transaction is for advert.

I spoke with my bank but they stated that foreign transaction has been suspended on ATM cards execept I will obtain a Dollar ATM Card. This I am not ready for because it will not be a regular transaction.

Please I hereby ask what other medium I have to do this transaction. I tried registering on PayPal but they still did not accept my MasterCard. Would anyone offer assistance while I pay back?

To add money to your Facebook billing account, two options are available:
You either ADD money using your credit card which I think you've now tried and failed, or you use Pay4U service.
Go back to that ur billing page, and below the place where you have been putting your ATM card information you will find this second option. USE IT!