What happens if you substitute an item that's on special offer?

All our special offers are subject to availability. However, if you order items that are on a multi-buy special offer and we're unable to deliver all of the Items you need to get the multi-buy discount, we'll give you a pro-rata discount instead. It'll be based on the price of the items we do deliver. Equally, if you order an item that's on special offer and we substitute it, we'll give you a pro-rata discount on the substitute item based on its price.

So, now for the trickier part - how do we work out the pro-rata discount? To do this we need three things:

The total cost, before discount, of the items on special offer that we delivered (including any substitutes).
The total cost, before discount, of the items on special offer that you ordered.
The saving that you would have received if we delivered everything you ordered.

Then we divide (1) by (2) and multiply it by (3) to arrive at your pro-rata saving. Finally, we divide this total between the items on special offer that we delivered, based on their cost.

Sound a little complicated? No problem, we work it all out for you. All you have to do is enjoy the discount.

Note: This only applies when items on offer are actually ordered but not delivered. If our website shows that an item on promotion is out of stock or does not allow you to order it, we won't be able to give you the compensatory discount.

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