Billed for Speed increase after signing up for HBOMax
I have one month left on my first year promotion and I was told when I signed up last year that my bill would increase about $30 after my 1st year.
Today I signed up for HBOMax for additional $15 monthly fee -- so I was expecting my price increase to be around $45 above the $140 I have been paying -- so around $185 per month.
Then I received my order confirmation email that estimates my next monthly bill to be about $243.68 -- an increase of over $100 !
I understand why my expiring promotional fee may have increased my plan from $90 to $120 -- but I do not understand why I'm being billed $30 extra for a "Speed Increase" that I did not ask for.
Please tell me how to change my plan to the lowest possible internet speed (as I was doing fine with only 20mps with Century Link service before I changed to Comcast).