Customer Service NON Existant. Leroy Merlin simply not interested

I ordered a yellow velvet wingback chair online on the 13th of March. My order was supposed to be delivered on the 19th of March. Despite emails, a physical visit to a branch, several phone calls to the courier company, the third party agent and LM Customer Services 4 times, STILL NOT A SINGLE PHONE CALL TO APOLOGISE, EXPLAIN THE DELAY OR ENSURE A DELIVERY DATE. OVER R3000 SPENT AND NOT ONE PERSON IS PREPARED TO CALL ME. I ASKED FOR A REFUND AND RECEIVED RADIO SILENCE. THE CUSTOMER COMPLAINT NUMBER IS AN ABSOLUTE WASTE OF TIME.