Bad customer service at Cell Zone

I am disgusted in the service I received from Cell Zone. Had a new LCD put into my iPhone a week and a half ago. Now the LCD has gone off. When I took it back to him, he tells me it’s not under warranty and I must pay for a new LCD. He failed to mention that there is no guarantee or warranty on his goods supplied or installed the first time. All repairs is for the customers own cost. He refuses to take responsibility for any faulty goods supplied by him. Please be aware of Cell Zone East Point Shopping Centre. ********** 870, ********** 399 or ********** 140.