extremely poor data performance in a geographic area

Can anyone explain how I can call T-Mobile many times to report a connectivity issue in a certain geographic area and there is no follow-up, no change in performance, nothing over a span exceeding 12 months?

I pressed the support agent on my most recent call to complain and they said their "internal tech tickets" don't have a follow-up to the customer.

So I asked to read back to me the most recent update/resolution on one of my "internal tech tickets" and they couldn't do it.

I am convinced they simply aren't doing anything, not creating any said ticket, simply using the Level 1 support playbook and lying about creating any other ticket on my issue.