Didn't you recognize who called you?

Also uses this number 04-831 9132

indian male claiming to be from technical department and was trying to get me to check my wifi router and will likely compromise access to computers or hack internet connections if given the opportunity

A scammer pretending to be Spark

was trying to get my broadband provider details then trying to sell broadband from other vendors.

Missed the call but when tried to call back won't let you.