WANLI S 1088 carcass torn

Hello, I bought the WANLI S 1088 (235/40/18) at Reifensuche.com 1 month ago. After not even 500km the car jumps suddenly and turns into a hedge. When I had the car on a stage in the workshop one could see that the left front tire had deformed like an egg. The workshop meant Karkass torn. On the picture one can clearly see the damage. When the tires still had air the bump was a lot bigger. 2 days later, all 4 tyres were picked up. I bought new tyres in the meantime. Today, Reifensuche.com calls me and thinks 3 tyres are still good and they want to send them to me again (shipping costs go to me). I find it an outrageous impertinence to want to turn these tyres on again. Customer friendliness is probably something else. I will certainly never mount such tyres again, because my driving safety is important to me. h I’m curious if I can reach an out-of-court agreement with Reifensuche.com.