Honestly, just ignore it. You gain nothing by interacting with them.
Discussion
I get the pleasure of flaming them, which is something I must admit I like quite a bit.
Yeah, but who are you flaming? Just some customer service rep. who hates their job anyway. The kyc stuff comes down from management/compliance.
By replying, you're giving them more information than they currently have (e.g.confirming your address/email )
I will give them nothing but air.
This. Stay humble & stack sats