Bad Service

I have sent in my device start November at Springbok Branch where i was told they would send the device in for repairs with no papers from them to me I then called 2 weeks later the device was still not sent. Only then they sent it for the screen to be repaired it already a month with no device December passed still no return of device 15 Jan they called me the device has been repaired I can collect. When i got there the person who repaired my device loaded his personal details on my device with his pin on it and a picture of his Girlfriend on the wallpaper now in the 3de Month the devic eis sent back 3months installments went off with no use of my device now the tell me i mist be patient 3months of 660 a month its almost R2000 for no device plus the 4330 for the lcd which they also did not inform that you cant take out an insurance on the lcd with Samsung i received the worst service ever