Very bad and disgusting service from Makro Brakpan returns department

I went to the returns department to take back my Magneto 600 inverter which was bought between September & October 23. Upon arriving I was assisted by a lady called Siphokazi Khumalo who was extremely rude to me. I explained the reason I bought the inverter was because I use it for my camping company. When she booked it in I had explained to her that the report she wrote for the supplier my misleading as she has claimed my device had scratches as it only had a tiny scratch which was not even deep. I ask her to fix what she wrote and she left me while waiting for her to fix the mistake and she went and assisted the customer that came after me. When I ask her were do I need to sign as my item was booked in she then picked the phone and called someone and she the person my come to the returns department to assist this boring customer which happens to me. I then ask her that she can’t speak to the customer like that she turned and said this is my name if I want to complain. The sad thing I have spent too much money buying the inverter and when it has issues you are been insulted as if she’s doing me favor to assist me. I don’t think I will ever spent my hard earned money for the Makro stores.