Innovation Group Playing Hard to Get

On 30 September 2015 I bought a car (Hyundai Attos 1.1) through Auction Finance. The finance package included a warranty that was underwritten by Innovation Group. When I went through the warranty booklet I realised that I don't need it and followed their provided cancellation procedure to initiate the cancellation of the warrantee cover.<br> <br> I contacted Innovation Group on 23 October and they sent me a Warranty Cancellation Request form, which I duly completed and sent back to them. In November and December I called Innovation Group and they confirmed that my cover was stopped on 13 November. However, Wesbank has not credited my account with the refund because they have not received a refund from Innovation Group. <br> <br> Innovation Group insist that they did but are unable to provide Wesbank with written proof and I don't know why. So in Wesbank's books, my finance includes warranty but IG says warranty has been cancelled. Can this be sorted out please?