collections ?

I have been an xfinity mobile customer since 2021 and have had issue after issue with them. After cancelling my xfinity internet back in August 2024 it has been even worse. They sent my Xfinity Mobile to collections and prior to that would not allow me to make payments and still won't. I called xfinity as I was told to do by an xfinity chat agent. I was on the phone for over an hour with them trying to process a payment. Payment unsuccessful every time even though I have money in my account. They then told me I could set up an installment plan by paying $200 which is 1/4 of how much is owed due to not being able to make payments for the last 3 months. Payment wouldn't go through, then finally they told me it was sent to collections due to $800+ bill. They transferred me to collections and the guy that I spoke with said "They keep doing this, sending people here to talk with us and we don't do business with xfinity collection anymore" So now I am just stuck here and services are going to be disconnected and I can't just go to another Mobile service because it shows I have a mobile service in collections.