Alleged they were doing some sort of television rating survey

This number called me. The man said they were doing some sort of television rating survey. Called back but the call failed.

random no voicemail left

Caller: Market Research Centre

Didn't answer, unrecognised number. Called back, recorded message advising this is a market research centre. Blocked.

A female called at 7.20 pm claiming to be researching TV viewing for ratings etc. Called on my mobile number which very few people have. She claimed it was a random, computer generated number when I asked how she had obtained it.

Caller: TV Ratings

Asked too many intrusive questions not related to TV - suspected actually a scammer. Hung up and blocked

I did not answer. Similar calls from this number with the last 2 number changed. Every other day.

Number was deactivated by time I returned call. Likely scam.

Was suspicious from the start and when I answered I did not say hello heard breathing on the end of the line and they hung up

unknown - random

Suspicious seemingly random