It's really not a problem that these scammers knew your address. In order for them to be a problem to you, their camels would have to be able to swim to a civilized country from India.
This number called me today at 7:45 a.m. and it's SATURDAY. I am so furious!!! He was saying my computer is affect. I use a Mac but had turned on my old computer so thought, "maybe". I went along and then remembered a similar situation happened to my mom and she fell for it. I used some choice language with him and he quickly hung up!
I got a very hesitant speaker, sounded like he was new and didn't have his little script memorized yet, saying my computer was sending Microsoft messages so that meant something was wrong with it. I accused him of trying to pull a scam, sarcastically told him to have a nice day and hung up.