Quick to sell, slow to pay out.

Old Mutual's call centre is very quick to sell an investment product, but once you find out that there will be money making - only not for you, for them, they are very slow to cancel the policy. After a year's premiums went off they come with all sorts of stories as to why they cannot process the cancellation request. 1 being a section was not completed on the application form. I had the section completed and certified, then resend it to them along with a copy of my ID. Then the next consultant sends a message saying the document is unclear... however the document's quality is no different from the first document. So if you try to call them to clarify what the problem is, you need to listen to voice recordings for easily 15 min - still no one answers. I've sent several emails back and still no one responds. Not even an email confirming receipt of my emails. I need to know how to cancel the product as it is not giving the promised turn around in investment. I've lost more than a third of the money already paid. All of that to fees, etc. I need someone to explain what exactly is wrong with the documentation I've already sent through and why they cannot proceed with the cancellation request.