Musical Walker and now putting the blame on me

Good Day<br> I bought a Musical Walker from Jet stores Wynberg on saturday. I have asked the assistant to bring me a new one out of the store room and he said it doesnt come in boxes. There was no instruction form or anything with the item. We set up the walker and all looked good. I put my 7month old baby in the walker and 2 min later he fell through the seat. the musical item ontop does not stick either and makes no sounds. I called Ursula who is now putting the blame on us for not checking and not insisting on a box. I am very upset with the extremely bad service. i have called endless numbers and to my disgrace was told they do not have a consumer care line and that i have to go into the stores should i have any complaints with the stores. How pathetic. Seriously !!! I would like someone to get back to me asap.