No resolution after 2 months

I contacted Autopage Cell more than 2 months ago to advise them that I was no longer receiving my Discovery Card cash back despite being informed during the upgrade process that I would in fact continue to benefit from the cash back. They agreed to pull the call to confirm what I was told. They did get back to me to inform me that I was in fact promised the cash back. As far as I am aware this is a breach of contract as it was voice logged and I opted to upgrade on the back of this call. I informed Autopage that I am happy to either receive the cash back or walk away from the contract. They have informed me that they will provide a cash back almost 3 weeks ago. I have called the contact centre almost every day now to follow up. I am always promised a call back but have not be contacted nor informed of what is happening.