Lewis Stores Wynberg

In January my partner bought a new deep freezer from Lewis stores Wynberg. The freezer started making a huge knocking sound when the motor turned off. Since February we have been asking for them to come fix it and take a look. Zoe at Lewis stores Wynberg has blue ticked every message. This is disgusting customer service. It's supposed to be a brand new freezer. Lewis stores wynberg blatantly ignores us as the consumer. I want to take this matter to court for them not upholding their contractual responsibility towards the consumer