T-Mobile still lying to customers

I was transferred over to the 55+ plan about a year and a half ago. At that time I was offered the plan and told nothing would change a far as my plan and service the only thing that would change would be a cheaper bill. All lies. For the past year and½ I have called pretty much every month. Not only did they not transfer the my phone(only my husbands) and in turn send me to collections but they ended my husbands promotion that he was on for trading in his phone initially. None of this was told to me when I switched. I did get mine transferred to the new account, they made me open the account in my husbands name to get the 55+ deal. So now my bill is $171.00 each month for 2 lines. No extras except insurance. They continue to charge me for his phone even though each month I call they tell me that they will pull the old promotion back and remove the charge . I spend 3 to 4 hours on the phone with them. Every month. 171.00 for 2 lines is robbery and every time I call I tell them to read thru the extensive notes on both accounts going back 2½years and some do and some do not and lie to me about not being able to see the old account or lie to me about the phone never being on a promotion at all...I tell them once again the ridiculous amount of time I have spent and the payoffs I received throughout my contract starting 2 weeks after I opened the account with them for the blatant lies we were told. I get no where most of the time But some times they say they have fixed everything and after another 4 hour call I hang up hopefull only to receive another $171.00 bill the next month and call in only to have them deny any thing being fixed/ changed at all the previous month. I have asked for thier recorded transcripts only to be told its against company policy. I'm at my wits end. They now want over $700 to buy out the phone when I traded in my old phone so do I get the old phone back then? No! They are crooks. I don't know what to do but I am ineffective now when I call bc I'm so fed up I start off being a rude. The customer service people all suck...they basically just want to no...try to upset and prove you wrong instead of helping in any way. I think they get thier jollies from it bc there is no other reason for their blatant disrespect and disregard for the truth. I am going to reach out to the FCC at this point bc I don't know what else to do.