T Mobile Store Doing fraud downers grove illinois

I am T-Mobile loyal and happy customer for over 7 years; the reason I am writing this hoping to get some assistance as I am lost in the woods; to being on past Thanksgiving holiday I went to a local T-Mobile store  located at 66 Ogden Ave Downers grove IL 60515 I went there with my brother in law as he wants to get the Thanksgiving promotion T-Mobile was running at that time to upgrade cellphone with trade in of old phone, at that time store representative offered me the same that I can upgrade my iPhone 6 (64gb.) with iPhone 7 (32gb) all is needed that I have to pay the $100 initially and the tax on the total value of new phone and give my old iPhone 6 as a trade-in with no changes requirement to my plan; so I decided to move ahead with the offer paid off my old iPhone 6 renewed the contracted on my plan and was given iPhone 7 (32 gb) with the promise that I will get a credit for phone payment on  my statement each month.

Over 3 weeks before I found out that I am getting charged for iPhone 7 and not getting any credit of any type; I called T-Mobile corporate store and were told that I have to be on unlimited plan to even  get the Thanksgiving promo they suggest me to go back to store,  I went to store I received the phone from a number of times (4 times or more) and every time they asked me to come back again or tell me they will contact me which they never did Store Manager Ryan one time don’t even come out from the back of his office and he was talking to me from his office, I never had such embarrassing situation in my life it’s so frustrating that I feel like I don’t have any option; at this time I am so disappointed with this whole situation with this update it feels like that your franchisee (T-Mobile) store literally ripped me off from my old phone cheated me right inside the T-Mobile store.

This whole situation is very frustrating I feel like ripped off at T-Mobile franchise not sure T-Mobile is conducting business this way and treating loyal customer myself like crap I also called many times to T-Mobile support many times to get help but no avail this store is located at 66 Ogden Ave Downers grove IL 60515 as per the manager the sales rep did this blunder with multiple user and he is no longer employed there and store manager is not interested in helping me at all.

At this time; all I am trying to get is to clear this issue please either provide me credit and honor the deal if not kindly return my iPhone 6 (64 gb) and any additional charges I paid for monthly, fees, monthly payment so I can just move on; if T-Mobile is not returning my phone and not fixing the problem then it’s a total fraud as I didn’t get any payment or credit for my traded in phone which is an act of fraud.

My brother in law who also upgraded his phone using same promo went to corporate owned store  in Michigan as he live in Michigan (he was visiting me on thanksgiving) they resolved his problem.

I need someone to please look into this matter, I consider this as fraud by your store / franchise and I like to report to T-Mobile corporate and other related authorities / individuals.

Just done speaking with at T-Mobile customer representative with ID#121251 I am literally told that can’t do anything and even hang up on me almost everytime.