the full charge for the next complete billing cycle, and the activation charge. The first bill will now come four to ten days after a customer starts service. Four days after the each monthly cycle date, the customer will be able to view his/her bill online.Each monthly bill will include the monthly recurring charge for the next billing cycle, EIP where applicable, games, third party charges, overages and premium content. Any changes to a customer's statement that affects billing will be added to the next bill.
Current T-Mobile customers at this point, need not concern themselves with this. New customers who are coming from, say, Verizon, will understand this without a problem. If you are signing up with T-Mobile on May 20th or afterward and are not familiar with "Bill Current", we'd suggest making a bulk purchase of some aspirin because you are going to need them.
Leaked T-Mobile screenshots show that the carrier is changing how it will charge new post-paid customers