2 hours to cancel plan that isnt working

I had print then T-Mobile took over my phone has always needed people to call twice the first call went straight to voicemail. Now people are calling three times and it's not coming through. I can call but no one can call me. I'm paying $60 for terrible service. It takes two hour to get a hold of costumer service and you can't even cancel online. For the cherry on top when my line was transferred from sprint to T-Mobile they decided I was no longer paying off my phone but leasing it for 12 a month. So little did i know I'm not even able to take my phone with me when I leave. Absolutely the worst deal I've ever gotten. I was either lied to by sprint telling me I was paying off my phone or  when the switch happens T-Mobile decided my phone was theirs.