Samsung not responding to Complaint

This is now the 5th time that I have had to take my Samsung Diamond drum washing machine to a Samsung approved service centre. On Saturday the 25th the Service Centre called me & told me that my machine has been fixed & that I could collect it. We collected the machine and upon doing my 1st load of washing, found that my machine is STILL NOT working properly. This has been going on since February.... I am totally disgusted with the lack of response from Samsung. I have had to call continuously & no one gets back to me. I have taken photographs of the t-shirts that the machine has torn whilst washing & have told both supervisors on numerous occasions what a problem I have had with the Service Centre that Samsung recommended. No one is bothering to get back to me & yet again I had to contact Samsung on Saturday the 25th. Once again I was told that Sylvester (Supervisor) would get back to me. It is now 12:26 p.m. Tuesday the 28th & yet again NO ONE HAS BOTHERED TO CALL ME BACK. I am very, very disgusted with the absence of customer service from Samsung's so called supervisors. Samsung should really re-consider its choice of Supervisors if it wishes to maintain a good name