This number seems to be used by different call centres every day.
Yesterday it was the IRS, Today it’s “Microsoft” and I managed to waste 57:25 minutes of their time.
I’ve reported their support key number so hopefully, GoToAssist bans it.
If you want their GoToAssist link I've put it on Pastebin at:
https://Pastebin.com/PFKgu4Gj
I hope this helps cracking down on these scammers.