Not AIBU to think that because they are!
I made the mistake of thinking that ordering from them would give me the protection of a 'big name' only to find out that it's not run by Debenhams at all and the are tonnes of complaints online about their nonexistent customer services.
You can contact them as much as you like but you won't get any sense out of them. Whatever you send you get a short response that suggests emails are being handled by computers scanning for key words!
I have tried to tell them 4 times that I can't return the package because it was never delivered. Their own records, if they bothered to check them, would show that. The response?
'We are sorry to hear that you are not happy with the product you have purchased. Please refer to the following page on our website for details on how to return the product to us.'
Arseholes.