Maxim batteries (Battery Pro agent)

Bought one of these from Battery Pro Willow Way, Pretoria. Gave constant problems and seller refused to honour warranty/guarantee. Kept blaming it on a faulty alternator or whatever else they could conspiratorially dream up. Bottom line I had to go to Battery Centre Menlyn who did a thorough test and deemed it useless. I have written to the owners of Battery Pro but they dont answer or acknowledge.