Scammer - supportpro duravant firewall services or some nonsense like that.
wanted me to share my screen to pay an invoice I apparently was due to pay.
Emailed me an invoice (dodgy looking).
This number was the one provided on the invoice - I called it and was advised I was required to pay or cancel the service - I said I didn't know what service this was for.

They said I owed some bill for something I don't have. I said 'stop scamming' and they aggressively said 'yes, you owe'. I hung up.