I wouldn't want to get into a call with someone with that attitude. If I'm quitting because no consideration was given to me or my work, and the first response I get shows no consideration to me, my work, or even acknowledge my list of grievances, a "quick call" is the last thing I feel like getting on.
In fact, even that word, "quick", is insulting, because there's no way this is getting fixed with a "quick" call. "Quick call" implies the grievances are minor. More insults.
2. Revert bot's changes
3. Ask to have call for feedback, while expressing fault for deploying bot to prod without collaboration & conceding to making this bot opt-in
(They may not have power to do 1 & 2, but that's a sign of an org not empowering their support team)
Patronizing “sorry you got your feelings hurt” responses are pretty much canned apologies.