Rewards/membership

I’ve been an Xfinity customer for over 30 years, but it’s looking like it’s time to change. I’ve been a Diamond level rewards customer for years, and the past couple weeks I’ve had issues accessing current rewards that I’ve claimed- like today the Amazon bookshelf AGAIN- I claimed and applied to my Amazon account and now can’t access the link. I chatted with two customer service reps yesterday, and was told it would be fixed in 24 hours (still broken), and also that there’s a glitch they are aware of and fixing shortly (it’s been over a week). Then they try to upsell me on my plan. I reached out on X to a third rep whose solution was to bombard me unsolicited articles on how the membership works then try to upsell my plan. Can anyone actually fix this issue? Otherwise I’m looking at another provider. With customer service this poor, I’m pretty much done. Also the numerous ads for all the additional rewards available thru 08/30- there are NONE- false advertising. Last opportunity to find someone who gives a [Edited: "Language"] and wants to help and NOT upsell me.