Request for billing support re: cancellation

On April 29, I requested for my xfinity internet service to be cancelled online (by the way, could you make it more difficult to find).

The website told me I would need to speak with a representative to cancel and that they would call me.  Some time later I spoke with someone whose job title is probably "Customer Retainment Specialist".  This person (just "doing their job") would not let me proceed with cancellation until I sat through 45 minutes of sales pitches.

In summary:

"Please cancel my service"

"Why?"

"This is none of your business, please cancel my service NOW."

"I need to put a reason for cancellation"

"I am paying $120 a month for internet, I just had fiber pulled to my house -- 2gbps up and down, $70 guaranteed for 10 years no contract"

"We can offer 1 gig with blah blah blah for $100"

"I am asking again to cancel my service immediately, you guys are not competitive in this market"

... repeat ad nauseum

I was told that it would take a couple days to process.  It's amazing how quickly you can self-service upgrade yourself into a more expensive plan, yet it somehow takes days and a waterboarding session to cancel service.  Fine, whatever... A few days later I received an email "Your cancellation request has been received".  Great!  Moving on with life.

I got an email this morning stating that my bill for the next month is due and last month's bill is now overdue.  By the way, it seems my internet has not been shut off.  Is this starting to feel like a scam?  Well, I go back to review the email confirming my cancellation request...  Lo and behold an empty last date of service.  Frankly I'm quite tired of this song and dance.  After a couple failed attempts to get ahold of someone on the phone to resolve this, I'm writing this message as a last ditch effort.  I'm not wasting any more time on this, it would take me less time to walk down and file in small claims than to deal with several more back and forths with you guys.

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