Gold chain not properly fixed

I bought a gold chain from NWJ in 2010, It broke within the first few months. We stayed in Mozambique and only came to SA few times a year. When I took the chain back they said they must sent it away and it will take a few weeks. Because I didn't know when I would come to Nelspruit again I didn't give them the chain. Later that year I was in Pretoria and took it to a jeweller there and they fix it within 15 min for R30. I had it fix like that about 4 times. We moved to Nelspruit a while ago so I went to NWJ after the chain was broken AGAIN, they said they cant fixed it the chain must be sent away and will take 2 weeks. I asked them to please phone me with a quote before they fixed it. I waited more than a month then I phoned them and they said they haven't received it yet, after 5 min they called and said they found it. The fixing cost R195, I asked them why they didn't phoned me because I would not let them fix it for that price. The chain was in 2 pieces 1 of 45cm and the other 5 cm when I got it back it was only 45 cm. Needles 2 say the next day it broke AGAIN . We took it back but they just said they cant give me my money back they will just sent it away again.