Dunlop Tyres

Hi . In 2017 i buy 4 Dunlop tyres at Dunlop in Polokwane . Begining of March 2018 i had a flat , when i take to repair we find some cracks on the outer wall of the tyre . PBG tyres in Pplokwane sent the tyre to Sumitomo Ruber SA . They denied that there are any defects on the tyre and therefore no reason for any claim . I think this is pathetic becouse even the salesman clearly said to me it os definitley a manufacturing fault . I will never again buy any Dunlop tyres and want to warn other people against buying Dunlop .