Microsoft tech support scam

So the following number just called me: 0061254874512

Number should be from Australia but the woman sounded like she was from India. Said she was from microsoft calling about my computer and when I replied “mm I don’t think so” she hung up. I’m too scared to call them back but please feel free to try and please reply with what they said.

Thanks!

Not quite sure about the number being from Australia, I cant confirm that but I tried calling through FireRTC and the number didn’t work sadly.