Hairhouse warehouse bad service

The worst experience from this company.. Will never buy from them again. I had my hair done at the salon and the hair iron worked great on my hair, that I bought one. Now the brand new hair iron that I bought is making my ends broken and giving it an ugly look but when I use my old hair iron it's not doing that at all. I keep sending the company emails but no1 bothers to reply eventually they take the iron for testing and says nothing is wrong. Now I spent R915 for hair iron that makes my hair look like ****.. The company only responds by email. They don't bother to call the client to see what's wrong. I want someone from this company to call me so I can explain cz clearly they don't bother abt keeping the client happy