Shoddy Service from Discovery Insure

The service is so terrible. I am actually going to cancel my insure policy. I phoned on Tuesday at 12:32 pm and was on hold for 13 minutes. After holding for such a long time, my query was not resolved. Today I have been holding for 15 minutes and still, my query has not been resolved. I called at 1418hrs. My email to insuremaintainance written on the 27 of January has not been responded to. Your service is ****ed up and frustrating. I just wanted to know why I have not been receiving my cashback? If a consultant calls and dangles the cash back, please do not take the bait.