Well they couldn’t possibly try and correct their massive error by delivering on a Saturday because Valve didn’t tick the Saturday delivery box, so their hands are clearly completely tied /s.

The main issue is, despite being “the customer” in this exchange, we are not ParcelForce’s customer, Valve is; so they feel essentially no obligation or care towards us. Meanwhile Valve doesn’t have to care as you have no option other than to order the device through them, and they don’t have to reimburse you as you technically didn’t pay for shipping (even though it’s absolutely included into the price of the unit). It’s basically just an example of the “free market” falling apart, as there is no true competition, so you just get shite service and have no recourse against them.