Highly irritating contractor from Blue Mercury

I received a phone call at about 16:00 on 29 Sept 2015 from a contractor named Feroz from Blue Mercury who tried to sell me an insurance for my vehicle from Discovery Insure. Despite telling him several times that I am not interested, and even let him speak to an unhappy Discovery Client, he continued to try to sell me the insurance. After 10 minutes into call I told him I am cutting this the call, but he tried 30 times in 10 minutes. I have the call recorded and a screenshot of the call log. Is Discovery Insure so desperate for clients, that they contract organizations that hire individuals like this? Please can you instruct your contractors NOT to contact me for Insurance sales, I am not interested - especially after an annoying phone call like this one. I am happy to send you the recording of the Phone call, you judge for yourself.