I NEVER RECIEVED MY ORDER

I placed an order on the 8th of October 3 weeks later when I follow up I keep on getting empty promises being told they will escalate the matter and they can get hold of the sell, I mean who's problem is it when I do not even know the seller and I purchased from their website? now my calls don't even get transferred when they hear its me after giving them my order number they put me on hold till they put the phone to the side, I'm really disappointed I really trusted the brand "Leroy Merlin" thinking they legit but no guess they are A BIG **** as for my money I want it back and I will fight for it