T-Mobile USA review: Billing fraud

longtime sprint customer, t mobile acquired sprint. i was paying $150 a month for 2 lines, went in for a phone repair, mgr told me i could get a new phone free, and throw in a watch and notebook by adding 2 lines that were free because of my sprint contract. am now being charged $336 a month and every month they say they have fixed the problem and lowered my bill, but the never have. i ask for the resolution in writing, was told they don't do that but their word is gold...bs, and not ethical business. just got the new bill, no changes, same charge. nightmare company to deal with...Never again with this company