Defy unable to fix defective product under warranty

Hi, i bought a Defy Refrigerator in 2017. The icemaker starter giving problems back then and it has not been fixed since. We have had 9 technicians that came to look at it already and they keep on saying they are waiting for spares. The computer box was replaced twice, there was also a gear replaced and then the icemaker was forced in by one of the technicians. The icemaker is leaking water from the dispencer so we have to switch it off totally. Yesterday a technician came to have a look again and once again they are now waiting for parts. They are unable to fix a product that is still under warranty. This is really frustrating because since we bought the refrigerator the icemaker was never fully functional. The warranty is now ending in Dec 2022 and they are unable to fix it.