Poor and perthetic service

They came to fix my fridge took my money and I had to almost beg them to come have a look at it for a few months and I contacted them the day they supposedly fixed it. Only when they finally came back they changed some pipe and left again. Today I am still struggling and sitting with the same problem that I called them for. And the were not the cheapest around. How can bussines be so cunning that they don't care if their clients are happy or not... Who do they think will help support and grow their bussines when they treating us like this?