Harassment customer service - Order no. MAK747436

I brought blind at Makro online on the 29th November 2017, I install the blind last week Sunday only to find the height was small. I took the blind to makro with the intention of exchange it. When I get there @ refund department I was not receive well firstly was told they will not accept the item asking why? because its not clothes or underwear that you cannot return., those ladies were not helping me the other lady sitting next to the lady she was playing with her phone while she made silly laughter towards me singing a song I immediately ask her why she was rude towards me hence I am the customer. She continued to sing loud and play with her phone again I asked to see the manager to the first lady she was defensing when I wanted to speak with their manager because I felt I can sit and watch then treating like I have done something wrong. The manager came but to my shock he immediately did not do anything nor listen to my side of story. I raise my had to be in the same platform with them . The rude lady she said " THIS THING" SHE WANT TO RETURN THE BLIND, I ask her again who is this thing "B..." I am sure your sleeping with manger that's the reason they cant reprimand you and your giving me bad service. She started swearing at me she come close to me initiating a physical fight where three colleagues come and hold her. That time I started taking picture of her bulling me, I was shock it was the first time seeing an employee want to beat a customer she made that in full view in front of her manager, and the manager did nothing to ease my burden he immediately gave me refund and ask me to leave the refund department. Again I said to him I have recorded everything and he said nothing. The bully lady she continuously wanting to pass her colleague and continue to have a physician fight with me. I will make a follow legal route about this matter hence I was threaten in full view because I was not supposed to ask for exchange especial this item its not food. I do not know the policy of Massmart regarding how should we be treated as customer or we must accept the bulling and physical fight. I am still shock and felt abused while I was inside Makro. How can I be abuse for exercising my right as customer I have buying power I need Makro to explain this conduct