Poor Customer Service from Takealot and Designer Concepts.

I am disappointed and disgusted by the poor service received by Takealot and their supplier Designer Concepts. I purchased a sleeper coach, paid cash for the item R3000. I received my goods and I assembled it nicely, the next day I sat on the coach and something snapped and a piece of hood broke. I returned it and now they are saying return declined due to negligence.!!! Please explain how is sitting on a coach negligence? I am out of money and no item! They don't even want to reply to my emails and on Instagram. This is unacceptable consumer act. I want my money back or a replacement. The material is cheap so it broke within 24hrs not even 6months.