Stock vanished from store

I love Leroy Merlin. I ordered shelves online for pick up at Little falls and Fourways. Orders were confirmed and payments were made. On pick up at Little Falls, I was informed that the had no stock and that the system "diverted" my order to Fourways. Also, the agent said that even Fourways has no stock. As I wite, the items are still on the site and still reflect stock. Where is the stock and where is my money? They should investigate. TheTAT for pick up is 2 hours yet neither "system" nor "person" informed me of a stock out. Both agent and department manager said they can check when the last item was sold and both then retracted and ssid the cannot. They should investigate because I have no faith in the "system" or processes.