Why would an ISP do that, when any self-respecting business operator can simply instruct his or her call center reps to say the following:

"Thank you for calling us, Higher Purpose. Your Internet is slow, Mr. Purpose? We can certainly fix that. I see that you are currently paying us $39.95/month for 10mbps service. How about we make that $89.95/month for 20mbps service? Besides, who will you switch to if you don't like the price?"