Billed for a phone that was aupposed to be a free phone!!!

I was told a free phone and free phone line and free paramont and free Netflix and that we would get a military discount and autopay discount as well but bill says $276 this month wich is an $80 increase from last month before the free things i just named off. I have called almost daily this entire month about it and nothing changed so far or very little anyway so i have looked at every bill since 2019 cause it will not allow me to go back further and every bill has an added line or an internet box that was mailed or another device spread over a two year period and for some reason when i changed the phone plan on this one account prom one of the plans to the one that offered a discount only 1 phone was switched and them two months later another couple phones and then now they are all finally switched  but also my phone that i have had since 2017 and only cost $105 when i paid cash for it now says i owe $135 for it. And looking threw the bills i have paid for it more then one time and no matter what i say or do the protection 360 that i keep removing still takes me to level 5 and only gets reduced to level 1 after i say something.i have made sure that there is only 2 authorized people who can do anything and some how people go in a store add a line or a device and do what they want. I thought it was the one store that i was having an issue with about asking for an ID making a copy and attaching it to the account and emailing it to me and calling to verify so the issue would stop. However its every store that does not even ask for verification and i know for a fact this to be true. I tested it and asked a store that is nowhere close to the main one we use for something and told them a number and said that i was told it would be free. They handed it to me and did not charge me but also did not ask for any 4 digit pin 6 digit passcode or ID they even sent a reciept to the account. Wich is good but so what? All that showed me is that if i know somebody's number i can get anything i want from the store and TMobil will not charge me and if they want a money for it they will just add the amount to the phone number that you say and use the digital signature on file and spread it over equal payments of 24 months. A couple times aparently they mailed something somewhere as well.  I saw only 1 time that ID was provided and only 2 times a signature was provided not even on the same visit and the signatures are for the same person and are not the same as each other and are not by anyone who writes like that and whoever it was got an iPhone and a tablet that i caught two months afterwards and called about them. They removed them……. Well not really they said they did but this is the last month of paying on them. So i called again and they sent me a paper i have to take into the store it happened at that is 2555 miles away in order to do so. And look closely at your bills their is a note from the 10th of this month that bill is $276 but it is being reduced but $159 making the bill $196. A few days later another reduction of $17 was given making the bill $188. Um they do not know how to add or subtract the device section says $834 is owed on devices. Some of wich should not even be on the bill but i added the cost up and in total for all devices owed even the ones that should not be in there is not even $500. Ive got 6 pages of notebook paper back and front with questions about the bill and have called every other day about different things on the bill only for them to say its been escalated and its in the back office, give it 48 hours, one person  asked me how low I expected the bill to be and another one argued with me about the free paramont and one argued with me about the free phone line and phone and another one argued with me about the fact i was offered a free upgrade and never got one they have argued with me about what they advertise. Thank god screen shots are a thing. Plus the fact the stores do not ask for ID and i got told that they cannot be liable for the stores policies but since the begining they asked what security measures i wanted wich was ID a PIN number a passcode an email and a phone call until i answer giving them verbal permission for what exactly the person is trying to do yet that never happens they are and should be liable.