Extended Warranty

I took my Delonghi Coffee machine in as it stopped working and i purchased an extended warranty. They booked it in under Ref: 161/5689. Two weeks later i collected the machine, i came home and the machine still wasn't working. I then took it back the next day. The customer service gave me the address of the agents and i ran around the whole day trying to get the machine sorted. I waited at the agents for a couple hours and they fixed the machine. Now it has stopped working again. This will be the 3rd time i have to take it back and waste my time and petrol. I really feel this machine needs to be replaced with a new one. I cant face to collect it again and it works for a few days and then i have to take it back again.