Old Mutual - does not want to let go

My wife and I have been in and out of Keywest Krugersdorp branch to cancel ALL our policies with Old Mutual. The problem we are facing is that everytime we receive confirmation that ALL policies have been cancelled, we get billed at the end of the month AGAIN and AGAIN.<br> <br> Is this Insurer so desperate for business??? Why don't they want to let us go. We do not want any dealings with them, especially the Keywest Krugersdorp Branch.<br> <br> I made my last call now and was requested to send an instruction through for the cancellation...HOW MUCH MORE MUST WE DO. OLD MUTUAL...PLEASE RELEASE ME.