Trump tyre group SUCKS

I purchased a tyre from Trump tyre group in Johannesburg, the tyre started to Crack on the walls, I have complained on email and even called them several times from last year 2019 and till now no response, when I spoke to someone last time they said they having a look at it, but still no feedback wat so ever, they are really pathetic and I Wil never want to deal with them again, u had to go purchase another new tyre