Who called from 5168000000

i to have started getting the calls ..last thing i did was update my eBay pay pal info i had to put in my phone number .. not sure if they have something to do  with it

They're called twice in less than 3 hours.

I've registered all of my numbers twice on the Do Not Call site.  It hasn't done a bit of good for me.

called and stated that they were from microsoft technical department and that my windows system was going to crash at any time....told them that they were scammers as it was foreign sounding guy on the phone

reporting them to microsoft directly