Metro PCS ripping customers off Nationwide

You get your regular allowance of 4g speed data at the begining of your month according to your plan. Once you consume your high speed data they will throttle it back to a slower speed. The problem is they cut your speed so far down that its practicaly unusable. I have called and spoken with customer service, tech  support, supervisors and store personnel and the answer is always the same: "you need to top up your data" or the all to famous  "you need to upgrade your plan". But wait a minute, its supposed to drop to 3g isnt it? I have  measured my flow of data with Speed Meter lite and i know that 22 kb/s AIN'T no 3g. Ok then the problem is my device. Ha! Three different phones dont have the same problem. They have the same carrier. Metro PCS will talk to you like you just started using cell phones a week ago and treat you like you are bothering them with your foolish qualms. "Just be quiet and spend more money" is pretty much what i get out of my conversations with them. Somehow i dont see them staying in business too much longer so they are snatching as much money from the public as they can get before they are shut down. You should still be able to have a speed that is at least adequate after using up you high speed. Try Pandora or YouTube at 22 kb/s. Insanity is what i feel. Thanks Metro Piece of Crap :(