Eco Rubber - No back-up service

I had a chromo deck roof of a Parker Home sprayed with white Eco Insulate. This would reduce the heat within the Parker Home on those hot sunny days and also would keep the warmth within during the cold winter months. On inspection in December, I noticed black ball like markings on the roof surface. I tried contacting the agent with great difficulty, who applied the rubber coating. Eventually he contacted me in January and advised me he was no longer an agent for Eco Rubber. I then contact the branch in Port Elizabeth and the lady advised me to contact Leo Penny the closest agent who is based in Plettenburg Bay. When I contacted him, he told me to take photos and a video and send it to him via WhatsApp which I did with great difficulty as I had to climb onto the roof at my age. He took over a week to reply after I contacted him again and he advised me that the roof must be in the shade. I told him that the roof is in full sun and I requested what can be done to remove the marks. It is over a week once again and I still have not received a response from him.