Unhappy customer - No communication

I placed and paid for an order with Leroy Merlin on the 28th. On the 31st, I received an email saying my order was not accepted by the seller, but no reason was given. I called to find out why and was told the item was out of stock. Precious informed me that a refund would be processed and that I would receive an email confirmation, but I never received anything. I later sent an email and got a reference number. ***, but there has been no further communication.

I urgently need my refund so I can purchase the product elsewhere, as it is needed to assist my children during their exams. Please resolve this as soon as possible.