Terrible Service - Increased our cost to “fix”

My husband and I work from home and have had a fair enough experience with Xfinity service. We do fairly regularly have outrages but for the most part hadn’t severely distributed our day to day. There was a period of 2-3 weeks where every single day the coverage was down, resulting in every one of out zoom calls being dropped. When working with the support team to troubleshoot, one of the reps had offered to upgrade to a faster speed to attempt to resolve the issues - when we were wary of the improvement and made it clear we didn’t want to pay for any additional services above what we had, they said it was a remediation and not an up charge. A month later: we’re being billed $30/mo and when we call to explain, they tell us it’s impossible to reverted back to the plan we had been on. Now we’re stuck paying $30/mo for something that we never asked for without the ability to go back to where the (already expensive) tier we were on. Our option is pay for this unnecessary up charge or transition to a new provider. I guess it’s time to move to AT&T who will offer faster speed, locked in for 5 years and free products.