wrong heater and srll paid R1000

I am writing this to you with a heavy heart of disappointment,regarding the level of unprofessionalism,I have received recently after many years of engagements. I took my Milex infrared heater for the bulb to be fixed om my heater that is currently retailing at R5999 at any major supplier. When I called in a month later to follow up as they never take this long to do any repairs I have asked for in the past,only to find out that the Centurion store for my feedback from head office some time back and never bothered to inform me. When I went to collect I was given a heater that is smaller than what I submitted to them, I challenges the smaller demo that they wanted to give me as its last that half of my original heather and has to pay R1000 for it , which I might add has its own tech problems as it was not as hot as the one I submitted, Instead of resolving this matter ammicably I was to or leave it, they kept me waiting another month while my kids froze at home during the cold front with hopes tht my heater will be returned after being fixed , im then presented with the banged up heater they launched over 3 years ago. If im expected to take the small heater worth 2k I would rather get a second small heater to compensate me on the financial loss im currently in as the moments. Service was poor to say the leaset and delivery on a smaller product is jist plain insulting to ms.