Lack of service from Makro supplier

Bought a treadmill from Makro. The treadmill is leaking oil/lubricant. I only managed to get through once to the Everlast call center where a consultant promised to SMS me her email address. SMS was never recieved and I can't get through to the call centre again. Its been two months and I cant even log the service/repair request with Everlast. The number is constantly enagaged. I call everyday at different times but no luck. Why does Makro work with such pathetic suppliers?