Misleading Customers

I'm registered with Checkers Sixty 60 and got a message saying that they have a competition until Christmas day with sunblock and if you spot the Santa on the product and order that, you then entered into the competition. How can you run this competition but you can't order the item as no stock is available. Poor planningand execution I must add. What a waste of time going through the whole.log in process and searching for the necessary product and then only to be advised that the item is out of stock. What a joke.