T-Mobile USA review: Terrible company and customer service

Had Tmobile for 2 years and service was terrible. Dropped calls constantly. After contract was up I changed services. This happened in a mid month cycle. Trying to get final bill amount and avoiding late charges I called Tmobile and requested my final bill. I was told I would have to go to local store for that info. So, I went to local store, 30 minutes from home, and was told I would have to get that info from calling Tmobile customer service. So, went home and called again and was told to wait for final bill. Was contacted via text message from 3rd party collection that I owed total full month bill plus late charges. After pleading my case they pretty much told me to f*** off. I will never do business with them again. Terrible customer service and charged me for half of month not having service with them. Very dishonest company.