Delay in receiving refund after cancellation of policy.

After many issues with our latest motor claim we decided to cancel our policy with Old Mutual Insure which we did on 27th October 2021. We received a pleasant letter acknowledging our cancellation and informing us that our refunds etc would be actioned around the 7th November. We phoned on the 8th November to be told that the refund had been put through and we should receive it within 3 working days. As we had nothing by the 15th we phoned again to be told it had been actioned but because it was being put into our credit card it would take EIGHTEEN WORKING DAYS to reflect. WE queried this but were ASSURED vehemently that it was the case. STILL HAVING NOTHING ON the 3RD DECEMBER, we spent 45 minutes phoning our credit card company to be told that NO payment had been received and it should have only taken ten working days. We immediately phoned OMINSURE on ***and spoke to Henry who answered the call. At our request he passed it on to someone more senior who assured us Henry would investigate and come back to us with information by the end of the day. THIS DID NOT HAPPEN AND WE NEED URGENT ASSISTANCE.