Bait and switch pricing, is this the new T-mobile?

I have spent hours literally hours on the phone with customer service over the past year I was a sprint customer and migrated to T-Mobile against better judgment and being that I'm 55 and my parents are as well we all went on the same plan because in theory it is going to be less expensive. at the store in Memphis Tennessee unhewn Avenue we were told that since I was migrating from Sprint to T-Mobile that they had an end of month special that two lines at regular cost of 45 each and the third line would be free. I have had numerous people at customer service say yes they say that that's how it supposed to be they're going to fix it right now and nothing gets fixed I've had people in the store tell me yes that was what was supposed to be but it didn't apply to that plan yet the sales associates are the one who put us on the plan they have refused to make a correction stating that it just can't happen because that's already discounted. Well it's odd that's already discounted because the 55+ plan now is less than $55 a month so T-Mobile is this another lie another bait and switch how many people have you screwed over and chase off you've gotten so big that you don't care about your individual customers it's only the volume that you were interested you shame on you I would love to join a class action suit against T-Mobile when you make a promise to customer follow through with it even if it's wrong you have to follow through with it don't get them to sign up for it and then after the fact say oh sorry we can't do that. Train your associate train your managers this was a manager that quoted these prices to all three of us. And I know I'm not the only one that has the same complaint shame on you T-Mobile taking advantage of senior citizens veterans first responders do you know when you can for a dollar.