T Mobile Cell Service Illegal Billing - Sent to Collections Damaged Credit report Bellvue WA

I had a contract for 7 years and then switched to prepaid. I decided to check my credit bureau accounts and saw three collections on there for 3 T Mobile accounts. I panicked and thought my Identity had been stolen. I called the police, they came to take a report. Together at my dining room table, while on the phone, we discovered that one of the collection accounts was mine and it was tied to the 7 yr account that I had closed. Somehow $221 had gotten attached to it. But wait! They had also sent it to 2 other collection agencies for different amounts and different dates. It looked like someone had opened 3 T Mobile accounts in my name but NO T mobile had slammed my report with 3 collections with different amounts. I was still a current customer. UNBELIEVABLE> I had to tell the police office to go. I will be reporting these jerks everywhere.