Do I need a bank account or credit card? CSMgr.8686 Updated October 10, 2016 17:56 No. You only need an active mobile phone with Premium and Carrier Billing services enabled. Related articles What if I have a pre-paid or pay-as-you-go phone? What is Boku? How do I apply to be a Merchant? I received the message, "Your number was blocked" I received a text message saying that my phone was saved on file for future express purchases. What does this mean? Comments 0 comments Article is closed for comments.