Peacock Prem Plus

Upgraded to Peacock Prem. Plus,   

Need to change back to just plain Peacock or Peacock Prem.  unable to complete transaction on line, with chat bot, or talking to customer service reps.  I have been to the local store 3+times and they are unable to assist. and calling numbers to places/person unknown to me with no results.

Is there an upper manager who can assist since everyone else not able?  I do not use Xfinity eqip