Debenhams fails to deliver Christmas flowers and ignores my complaint

I’ve called and emailed but it can’t be bothered to respondPlease help me get an explanation for the non-delivery of a Christmas bouquet from Debenhams Flowers. I am on a mailing list and there was a half-price offer (£25 rather than £50), so I bought a festive centrepiece. On 25 November I placed the order, which was to be delivered two days before Christmas. I received an email saying it had been despatched, including a link to delivery company DX, but the flowers did n