Unresolved Problems

Good day. I am reporting a problem I have with my cellphone that I have already booked in for repairs twice with the same problem. My phone puts itself off and on on repeat until it overheats and the battery died. I've paid R400 to get it fixed the first time and after sending it back the second time for the same error I was told the phone has no fault. I am unsure where they are sending the phones for repairs, but I get the feeling that the technician has no idea how to fix a phone. I am currently in Port Shepstone visiting relatives and will have to take the bus back home. However I have no means of contacting anyone when I arrive in Pretoria since my phone does not work and didn't take measures to bring an extra phone since Samsung believes my phone is fixed. This is unacceptable and I will send it back as soon as I get home. But if this problem continues I will have no other choice but to take further measures.