Unnecessary automatic refills by pharmacies / my angst

I get my from the local CVS, who gives me 90 days and also mails them to me for free after Covid.
But they are pushy about automatic refills, though you can refuse them.
I use them because they are cheaper than mail order and in a pinch I can go and get the stuff. But since I’m at zero copay for my maintenance medicine, I have a good supply stocked up.

This I don’t understand. Do they refuse to refill a prescription if you have automatic refills turned off?