Unprofessional manner

At 15:52 8 March 2021 I received a phone call from someone who said he was from Onair TV he wanted to offer me a decoder, I was very interested with it the problem started when he wanted my Identity numeber, I told him I am not so comfortable giving out my personal information he must give me proof that he is really from OnAir TV, he said I should speak with his line manager, .

The line manager was so rude to me I ended up dropping the phone.