I received a call from this number, I asked what the call was regarding, and the caller would not reply, I asked repeatedly what the name of the company was, he would not reply to this, he just kept asking why I was being angry, I ended the call, within 5 second he had called again, with same result as before. I ended the and was able to block the number.

My phone provider flagged as “suspicious calling pattern”

Electricity offer. On a weekend. Caller wouldn't stop talking.