hi, i am on the even more plus plan at tmobile and i have a phone i liked at first but after having it a while it does not meet my feature requests and i don't like the keyboard it's hard to type on the phone is on an installment plan and has not been payed off yet the phone is not broken i just don't like it my main questions are can i get a different phone? or do i have to wait until i pay off the current phone i have then buy another one ?