Innovation Groups Customer service at its worst...

I have taken out a policy with Innovation Group through Std Bank. It was an extended warranty and mechanical breakdown cover in January 2016. Even though I had cover for warranty that only expired in July 2017, I took the additional cover for mechanical failures. A claim was submitted from Hyundai Bedfordview in April 2017 and the claim was rejected. Since then I have asked for a cancellation of the policy and a refund of the installments and I have not had any response from Innovation Group to date.