Incorrect internet bill, was promised $76 a month for a bundle but instead billing is showing multiple services totaling $285.30 a month

All I use xfinity for is internet, on 07/18/2024 I asked chat support to turn off my landline(which I have never used) and to downgrade my internet service to a cheaper plan(all I use xfinity for is internet, the landline I have been paying for was never installed nor used).  
I was told that the cheapest option for my internet service plan wasn't the $30 advertised on the website but instead would be to convert my unused landline to mobile for a bundle deal and that this would drop my monthly internet bill from $167 a month to $76 a month.  
This bundle seems to have been misconfigured as in my billing profile I do not see $76 a month. Instead I now see a new xfinity mobile bill for $117.44(for a phone service I don't use or intend to use) and an Internet and voice bill for $167.86.  
I have spent many hours chatting with support over the last month and I keep being told this problem will be resolved but it has not been and in fact only seems to be getting worse, please help get this issue resolved.
In summary my monthly internet price was supposed to be $76 a month and instead I now see multiple services totaling $285.30 a month when all I want is affordable internet service at the original price I  was promised of $76 a month.