Harassment by call centre!!!

I'm being constantly contacted by Discovery insure, even though I have requested them to stop contacting me!!

When I actually wanted to make use of your services, you weren't interested to insure me!!

Now I'm getting calls almost daily? Requesting to loose my number, isn't working. Requesting to speak to a manager, only results in you ending the call. You not willing to disclose which third party sold my information to you either, nor can you give me the process to follow to ensure I'm no longer pestered by Discovery Insure!!