How to write a Cancel dialog box without using “Cancel” as a button name. Good labels.
@gruber When the only two responses to an "offer" are "Yes" and "Maybe Later", I have taken to reporting the offer as offensive. They know better; someone has convinced them to do that.
@AlgoCompSynth I don’t think you should be offended by that. Yes, it’s true, you might know for certain that you will never be interested. But saying “Maybe Later” is not merely euphemistic — it conveys the important information that if you change your mind you can do it later. Dismissing it now does not close the door. For some choices that’s not true, it’s now or never.

@gruber I want the right to say, "I have neither the budget nor the use for your product / service and I never will. Please leave me alone." Or just plain "No".

I used to work in telemarketing. We were trained to keep the person on the line and rebut every excuse. That wastes everyone's time.

@gruber I want the option to reject an offer permanently.
@AlgoCompSynth But this thread is about confirming the cancellation of a subscription. "Not Now" is all you need for deciding not to confirm. "Never" would be terrible in this context.

@gruber I have similar gripes with cancellation dialogs, which I've encountered frequently the past few weeks as I migrate off of cloud and streaming services. It's fine to ask "are you sure?" once, but any more than that, any attempts to cajole you into staying are again, a waste of my time.

I have made my decision - from the Latin, "to cut off" - and I want the service to accept that!.