No delivery as promised

I placed an order and paid for it on 27 Oct, Delivery date still shows 2 November on the website. I called the contact centre, was told that this is a 3rd party supplier, as if to pass the blame. The call agent could not get hold of the supplier and said he would call me back in 10 minutes, I am still waiting. Received a reply on mail late yesterday stating they will get back to me once they have details on the delivery. Still waiting. Sent follow up mails this morning, no answer. Can I just get my order which I already paid for? This is for my client and Leroy Merlin is making my company look bad and creating reputational damage.