Leroy Merlin Online Store system is neglected and orders do not get processed

Ordered online. Order was delivered 27 November 2023 but does not match the item description. Tried to return the product immediately but the order was never closed on their website so I can not process a return. I reported this to the support line ant they promised feedback withing 72 hours. Never heard from them again. Now, on the 3rd of January, the phone lines are not answered at all no matter how long you stay on the line. The system eventually cuts you off without having spoken to anyone. How do I contact you Leroy Merlin? Your system is broken and you do not respond to any customer queries?