Defy after sale service sucks

Our fridge blew some rust powder into the bottom vents contaminating the food. When it stopped cooling the technician came and replaced the condensator grid with an aluminium replacement part. He promised to return the next morning to refill the fridge with gas but never turned up or made any contact. He closed the job (***) so we had to phone head office to re-open the job (***) . We are now 3 weeks without a fridge and is still waiting for the technician to finish the job. Today is one of several days that "he will definitely contact you" and then he just doesn't turn up or phone. I'm highly dissappointed in Defy after sale service!