Complaints about Phone Numbers800-839-####

How do these people sleep at night

800 839 9369. Got voice messages for one of my son's to call them back. My son's a minor. Really!!! Very annoying.

I received a notification 5/21/19 on my computer that blocked all access and wouldn't allow me to exit, purportedly from Microsoft, that my computer had been hacked, to call 800-839-7940. I called and was told a malicious virus had been introduced and if I didn't follow instructions, my IP address would be blocked. I was asked to cooperate in granting access to my computer, which I refused. My virus detection LATER warned me this was a malicious site on my computer. This is the third similar event since Saturday.