xfinity rejecting my attempts to up grade netflix

I have talked to mutiple people at xfinity and netflix and no one has an answer. I was increasing my internet speed when the xfinity customer service rep told me I could get a package that including my current netflix service and get apple + and peacock at the same price. I said sure. She didn't mention that my netflix package would go to basic (with ads). When I had xfinity remove the "upgraded" package, netflix remained at at basic. I have tried for two weeks trying to return it to my orginal service but it refuses to accept any change. AND NO ONE has an answer other than change emails, or transfer profile.... I'm thinking... how about, finding out way it will not upgrade on the xfinity side. NOTE TO MANAGEMENT: you are losing revenue because no one cares enough to fix the problem.  Please figure this out.   Thank you for letting me rant.