Royal Mail are experiencing delays therefore it is your responsibility to check how they are delivering in your area.
The best before date is exactly that, they are best before the date written on the label. It doesn’t mean that you can’t eat them past that date as it’s not a “use by” like you would find on meat. So you can use your own discretion.
If your order doesn't arrive at all, please let me know and I will refund/resend.
(Resending is preferred)