Scammed by T-mobile, now what?

We all need to get together and press charges on T-mobile ever since we got it I have heard nothing but bad things about it. On my case i had sprint, loved the service and the price was really cheap. Then T-mobile bought them out. And its been an on going battle since. First week we noticed we had no service at all. So we call they say its the sim cards. So we change them. Still no service only partial voice. Then they say we need a hotspot to get data. So we buy the device. Still nothing. Then they say its the devices. So we switch devices wich made our bill go up like 200$. Still nothing. So now were locked in for 2 yrs. We call withing a couple days to return the devices and cancel. Since we had no coverage. They send us a 4000 dollar estimate to cancel. We traded our devices in and the phones were suppose to be free for upgrading. We didnt have 4000 cash and seemed stupid to me to pay. For phones that i was never going to use. So we call again. They send us new sim cards. Call again told us tower will be going up in our area within a month. Call again told us we need a landline and wifi from a local provider. So after 2 years of nonsense with them and paying our monthly bill for service thats only partial we get a letter saying there canceling our service because we violated there terms. Too much roaming in my own house. So we pay off the remaining balance on the devices. Try to switch to verizon and now there refusing to unlock our devices. And keep asking wat can be done for us to stay. They are by far the biggest scammers and thief's in the mobile cell phone sector