Failure to pay MiRewards

I took out car insurance with MiWay in March 2015 and I was promised money from the MiRewards program and now they are failling to pay the money as promised. I called and spoke to Thabang Khesa so that they can release the money as promised. We had a long discusion around the Terms and conditions based on the MiRewards document that he sent to me and could not reach the consensus. It is clearly stated that the rewards cycle is 3 years/ 36 months and according to Thabang Khesa I have not been insured with MiWay for 36 months. This is a contradiction because logic tells me that March 2018 was my 36months/3years with MiWay since my policy started in March 2015. This is misrepresentation from MiWay to keep clients for long and when its time to deliver on their promised incentive for being loyal they fail.