T Mobile Insider Code
When the code is used. You would have to ask a tmobile employee if they have any to spare. I wouldn't switch until i get an insider code. To begin, simply enter the exclusive code you were provided. Webinsider code(promo code) is a 20% discount to your phone bill.
Webgo to a store and tell the rep that you want to switch carriers and how many lines you have. Webcheck the status of your exclusive code. If you do not know your exclusive code, click here.
