Bad Customer Service

I bought the russell hobbs iron worth R1199 from @ Home stores, on the 28th July 2021, and the iron is still under warrant, the iron started giving me issues. Yesterday, I went to @home at the mall of the South, to report the issue and get assistance. I spoke to a gentleman. who referred the query to the manager, who agreed that a new iron can be given to me. However the lady that had to process the request, insisted that the colleague must check the iron first, I told her that when the iron is in use, after a little while dirty water is released and this happens often. she told me that her iron does the same thing and its not a manufacture issue. She wouldn't take back the iron and give me the new one. Can some please assist me, I need an iron that doesn't self-clean while I am doing my laundry because to me that does not make sense, that i will have to wash my laundry twice after paying so much money. I need this resolved ASAP as this is not what i paid for. I know people that have used the same iron for years and non of this has happened to them, meaning this lady is trying to patronising me and that is totally unacceptable in my eyes. Her services was cold and rude and would not give me the time of day but could smile and laugh with some white guy that came after me. If this is how @Home trains they staff then Wow i'm disappointed.