Cannot get anyone to repair a fridge under warranty.

We Bought a Defi fridge from Hi Fi Corporation at Mall @ Carnival and it is still under warranty. The rubber around the deep freeze has come loose and we have contacted the branch for them to come and repair it. It took them more then 21 days to get back to us with a reference number. But when they called I was driving and couldn't take the reference number down. I asked if they could possibly message me the number or call me back. Nothing was sent and didn't get a call back. We called the next day and no one knows anything about it. We then asked to speak to the manger of the store and then he said please hold and transferred me to someone else. That person then tells me it will take up to 24 hours for them to come back to me. So we said to them this has gone on for more then a month now and no one can give us any information on this not even a reference number. How else can we get things done. The person responded and said I should get someone else to assist us in getting this sorted like a lawyer.... to get things done faster.. Now I really don't think a company should be suggesting the client should bring lawyers into this. I need help with getting my fridge fixed. Please help