Prices on the shop move with promotions and bundles, and it is genuinely irritating to see the thing you just bought get cheaper. Here is where you stand.
We look at these individually rather than by a blanket rule. If the price of something you ordered dropped shortly after you bought it, email [email protected] with your order number and what you saw, and a person will look at your case. We cannot promise an adjustment in advance, but asking costs you nothing and we would rather hear from you than have you quietly annoyed.
Two related things that are settled policy:
Discount codes cannot be applied to an order after it is placed — see I forgot to add a discount code. If the order has not shipped, we can sometimes cancel it so you can reorder with the code.
You can cancel any time before dispatch and reorder at the new price — see Cancelling before your order is dispatched. If it has already shipped, the normal returns route applies: What is CircuitMess' refund policy?