Defy's massive ignorance and poor customer service

My glass oven door exploded about 3 months ago yet the stove is just 2 years old. I contacted defy and they sent a technician and confirmed it's a production fault and that i would get my door replaced. They said my door would be available by the 15th of September but no one has said anything i have been calling daily they keep saying they will get back to me but they don't. I have sent emails too. The costs of continuously calling for about 3 months is unfair. One suggested that since i have waited for too long and that my stove is still new they should replace the stove. The manager refused and never gave me feedback. 3 months of talking to yourself. I have complained on their page but they are just empty promises. The loss i have incurred im heart broken 💔💔💔💔💔💔