T-Mobile 5G home internet

I picked a home internet 5G last year 9/27/22 but didn't work well and didn't have reliable coverage, so we returned it on 10/02/2022. I just noticed that T-Mobile charged me $86.30 on Oct 2022 for set-up and $51.40 every month until July 2023 and then $56.40 from July to now! Total $666.70 

On the phone with T-Mobile for the last 45 minutes. 

Check your bill… 

My account shows that we have returned the device!