Xfinity is the worst service I’ve ever received

I was told I would get $10 off a month on my Internet and receive bill credits. Xfinities agent either was completely incompetent at their job or straight up lied. Once my year is over I will never use Xfinity again. Complete joke of a company. After bringing this to their attention they ignored me for a week “while they conducted an investigation” never reached out to me and said it’s past the 30 days so there’s nothing we can do