Order Delivery issue

On the 25th of May 2022 I made a purchase of a Horrockes cloud leaf 6-piece double duvet set product code 817563. And I have been following up since then, I never received a despatch message or email to tell me when I will receive my order. I have been sending follow up emails and I they would say they would resolve the issue and get back to me so I called homechoice today and they said my order was delivered 2 weeks ago to a person whose name I do not know. They also provided with a number is not mine and when I call it doesn't exist and said that it is the number of the person they delivered to. I asked what the way forward is and they said I should draft an affidavit and send it to them which will take 30 working days for the ***** department to investigate and come up with a solution. My question is how possible is it that someone who is not me signs for my order without me making prior arrangements to that effect, and how come the cell number which they say they sent the dispatch message to doesn't exist when I call it? It's been almost a month now, I have not received my order and I have been the one following up on my order but still nothing. I'm very frustrated.