Makro bad service

I bought a mellerware air fryer at this store 7 months ago . Faulty and returned to store . The management of this store just pass the buck and nothing happens. After 2 weeks now I’m told I will get another unit but not in a sealed box and have to wait for this demo model from the supplier . I have been **** to in respect of return phone calls . The technician who I had to phone at mellerware called micheal also made me out to be a **** as he told me Makro must credit me or give me a new unit . After driving to Makro ( an hours drive ) from me on the south coast of kzn I was told this is not true . Sick and tired of all the BS over a product which cost me R1000 and it is not my fault . Big companies like this think they can take the customer for a ride and basically do not care . Disgusting service