@home terrible service

I bought a Breville bean to cup espresso machine a few years ago. A few months ago it started to give problems, the pressure in the machine didn't build up. I took it to @home Baywest and they said it had to be sent for repairs. I had to pay a certain amount and a few weeks later they let me know that I ould come pickup the machine and that it was repaired. I returned home(I live in Somerset East and had to drive to Port Elizabeth for the nearest @home). When I got home nothing had changed, it was still faulty. I took it back as it was still under the warranty of the repair(another trip to Port Elizabeth), they sent it to Johannesburg again and they phoned and said I can come fetch it, they cannot help me(another trip to Port Elizabeth). They said they didn't have the part! My question is: what did they fix in the first place and what did I pay for! If they didn't have the part in the first place, why let me pay and believe it was fixed. And 2nd this expensive machine is useless to me if they cannot fix it. This is terrible service from Breville and especially @home