$50 T-Mobile Prepaid Refill Top Up Cards. Refilled in a Matter of Minutes by Email 24 Hours per Day 7 Days a Week After Amazon Approves Your Order. No TMobile Card Mailed. Digitally Refilled. Direct credit to your T-Mobile account via email in minutes - No need to wait several days for a card to show up in snail mail. No refill card will be shipped. Easy to refill - Upon received of your Amazon approved order, you'll receive an email to the email address listed on your Amazon account requesting the T-Mobile telephone number you want refilled. Upon receipt of this phone number your T-Mobile account will be refilled within minutes.