Rude agent

I’ve been receiving calls from people claming to be dot sure it’s a 053811 number….and I have previously asked them to remove tmy name from their list…..yet daily I get lile 3-4 missed calls, so today I get a call and I ask the guy to stop calling me and he asks me why…..I responded by saying firstly it’s my number and you have no right to even ask me why as if you have a right to call me …it’s my number and I’m telling you to remove my number…..he said ahhh well then we’ll keep calling you then…..I hung up he called again and I swore at him, hung up again, he persisted in calling…..this is my number and I want it removed from your database…..I have never had any dealings with dot sure….and this expirience just killed any future prospects of doing business with you….