You can use your Milestone Gold MasterCard to pay in stores and online just like any other card or credit card. Depending on whether you have a magnetic stripe or chip and PIN problem, you will need to swipe or insert your card in a physical store. All you have to do to make an online payment is log into your account. You'll be able to make payments from your credit card balance after that. You can also pay your invoices with your credit card. For invoices that come due on a monthly basis, automated payments are appropriate. They even make certain that you don't forget about past due invoices.