keeps calling no message left. if answer get goodbye

Caller wanted to verify my residential address for my mobile claiming to be from a real estate company and when I returned their question with questions they hung up!

Mobile showed as telemarketer. When answered they are gas/energy comparison co. SavinGreen. Actually quite helpful.

multiple calls from this number over the week. I use Truecaller which recognised it as spam/telemarketing

this number keeps calling daily, no message left

This number has now called me daily the last four days. I don't answer. Phone is now classifying it as Telemarketer.

spam