I found this in their terms & conditions, read the small print folks!
SOLD OUT
Ideal World stores products across five (5) different storage facilities. When a product is classed as 'sold out', this confirms there are zero (0) of that product left within one (1) or more of Ideal World's five (5) storage facilities but not necessarily all five (5.) That is to say, one (1) or more of Ideal World's storage facilities might have a quantity of a product left and Ideal World reserve the right to sell that product even though it has previously been classed as 'sold out.' Once these storage facilities are empty of the product, it can again be deemed as 'sold out' even though stock of the product might have been replenished in one (1) or more of the storage facilities that were devoid of the product. In a scenario where all five (5) storage facilities are empty in relation to a product, Ideal World reserve the right to class it as being 'sold out' even if a stock replenishment is expected within 24 hours or any time duration thereafter. All rights reserved. Nothing you have just read can be considered factual.