disgusted

I have bought 2 big tins 1,8kg nido 1+ @ check n'save in the phoenix plaza on the 31st of jan , however when i did open it and use the milk powder i did notice that with 3 hours the milk gets spoilt however i still used it then half way thru the tin i find 2 very frizzy hair strands in the milk then after getting nestle nido's'r?ght email i did mail them on the 12 of feb at 7:51am but i only got called on the 16th of feb however since nido showed no interest in calling me for that past 4 days (we had a bin day on monday so i trashed the can in the gabbage) then nido called me the next day (tuesday 16th)after explaining wat happen the manager refused (conny) to help me becos i didnt keep the tin , how does that work? Thou she offered to replace the 2nd tin becos of it getting spoilt. .i was told by her that they courier guy would pick up the milk i have here at home and they would replace that tin by tomorr?w they would call u(wednesday , bt i neva got no call) and no one came to deliver and pick up. I pay alot for this kind of tngs to happen. I want both my tins replaced please , look into this further cos im a really very angry and disgusted with whats being happening. Elisha