Defective fridge and bad aftersale service part 2

Well the driver from best electric came to look at the fridge and went to fetch the manager who witnessed that the fridge was freezing yet we received a message from head office that they don't see anything wrong with the fridge so now we are stuck paying for a fridge that is more trouble then it is worth i mean would we go to such lengths if the fridge did not have a problem it's not like we want to avoid paying because we have never missed a payment this is very poor client service i want to see the jobcard for the repairs that was done because clearly not enough was done .my mother used to work at a furniture store and would know if something is faulty at my home we have two deep freezers and another fridge that is older than 10 years but its still in a perfectly working condition what I'm trying to say is that this is not our first fridge and we are capable and decent people not that it means anything to the management at Best Home and Electric because they treat us like imbeciles who know nothing at some point that manager treathened my mom saying they would cancel the deal and when my mom called her bluff she said its too late to cancel the deal ,Im in shock and horror for the treatment my parents received by the company and its superiors ....