Won't let me check out on game

Hello
I'm trying to purchase the PS4 on game website as it's down to £89.99, But it just won't let me check out I've tried different browsers checking out of guest, clearing cookies and cache, tried PayPal credit, normal PayPal, normal bank card.
Normally I would just presume this means it's out of stock but it has been there almost 24 hours and according to live chat they assure me it is in stock,