Asda's online shop has become disgusting over the last year.
Company managers do not monitor the availability of goods.
Place an order, while paying for urgent delivery, and at the same time, half of the order is not delivered due to the absence.
As I understand it, the Asda company displays the availability of goods on the site, even if it is not available, in order to attract the buyer with a large selection. If you approach the legal side, this is a common deception, but in general it can be called quackery.