DEFY..ctive product AND no service

I purchased an oven from Defy, but unfortunately, I have been experiencing a recurring issue with the door not closing properly. This has caused damage to the furniture nearby. Despite a technician acknowledging the problem during their visit, no action has been taken to resolve the issue. I followed up with another complaint and even lodged a formal complaint, but despite a technician (Basil) reaching out via phone, no adequate appointment was made and no one has shown up to address the problem. I am disappointed with the absence of effective service.