Pay By Phone Bill Casinos - Learn how you can use your phone credit or bill to make a real Payforit casinos are those that let you pay by mobile phone. Pay by Phone Casino and Mobile Bill Casinos. This means all the games you can play at mFortune are completely unique and cannot be found at any other. Top Online & Mobile Slots Phone Bill Games: . Phone Mobile Slots have some of the best free slots phone bill bonuses where you can keep what you win!.