No, because They'll simply "Substituted item" Orange Squash Me, if it's not in stock.
I gave up shopping online because of the way They'll "substitute" items that aren't in stock for "similar" items.
In the past, I've had a Mango substituted for 500 grams of Strawberries, a bag of Basmati Rice substituted for a 1kg packet of Linguini and 4 cans of John Smiths Yorkshire Bitter substituted for a 2 Litre bottle of Cider.
I think it must be an in joke with the Folks who Pick orders, Who can make the most ridiculous substitution and get away with it, I complained about all 3 of the above and got a refund on 2 (Mango for Strawberries was apparently a "reasonable" substitution).