Terrible Customer Service Experience

I spent 4 hours being ping ponged between mobile and internet chat agents trying to resolve a billing issue.  I was offered a bundle deal for internet and ipad on 12/04/24 and I agreed and signed the agreement but somehow it was never processed.  Here is the deal:

Agent (11:29 pm): Stephen, I have checked your account and I would like to inform you that I can help you solve the over data usage issue and also help you lower down your bill to $60/ month.

Agent (11:29 pm): Shall I share the details with you?

nullAgent (11:31 pm): Xfinity offer you internet speed 500

MBPS with unlimited internet data + Apple iPad 10th generation with unlimited data + prorated current bill + discount bill for the 24 Months and total bill is $60/month after all taxes and fees and autopay

Agent (11:31 pm): In this deal you will get services along with a new IPAD for you

Agent (11:31 pm): Sounds, amazing right!

nullAgent (11:32 pm): So, do you want to proceed with this deal?

Ofcourse I agreed and signed the agreement and was sent an Ipad.  When my bill showed that I owed $76 and change and I was still on a limited data plan I went on the app and tried to resolve the situation this was a month ago around 12/20/24 I was assured that the situation had been resolved.  This brings us to today, I received a text saying I had used 75% of my data but wait don’t I have unlimited data?  Sure enough I check the xfinity app I’m still being billed $76 and change and I’m still on a limited data plan.  I go on the app and try to resolve the situation I started this at roughly 2:30 pm today and ended the conversation at 7 pm.  The conversation ended with the xfinity customer care agent questioning my honesty.  I told her I had downloaded the transcript and I could tell her specifically what it said.  Apparently a signed agreement with Xfinity means nothing unless it’s clearly in their favor.