eBucks Shop, no delivery and honesty questionable

Bought several items from eBucks shop on 25 Nov 2021. All items were delivered promptly except 1 of the 2 televisions. Despite my following up on 27 Nov, 29 Nov 1 Dec and 4 Dec, the last of my orders (1 tv) is yet to be delivered. After having no success with the call centre staff, I insisted upon speaking to a supervisor on the 4th and reluctantly I was put through. It appeared as if the supervisor was “working from home”, and her explanation for the delay did not make sense to me because I had received other parcels from the eBucks Shop. It appears as if the shop had failed to process my order as they ought to have done. I asked the supervisor for a letter confirming the reasons for the delay and also a copy of the 4 call recordings which I was to receive today. Unsurprisingly, I received no letter and no recordings and my eBucks Shop profile shows that I have “no outstanding orders” and “nothing to track”, so where is my 55 inch TV? The old adage ~ Buyer Beware rings true!