I just bought a SIM card. tried to register a Master Card multiple times. Message I got is: Unable to process credit card. I called the credit card company at least 2 to 3 times, but I was told the credit card is fine. I also called Koodo at least 2 to 3 times in between, but they also claimed nothing is wrong with the Koodo website. Please help. I really need to get this SIM card topped up. very frustrating.