@birsaybooks wrote:
TRACKED 24 Conditions para 3.3.1

3.3.1 Non Account Tracked 24 and Non Account Tracked 24 with Signature, we will aim
but do not guarantee to deliver your Item within 1 Working Day of the day on which
you Handover your Item provided such Handover occurs prior to the Latest
Acceptance Time applicable to the Drop Off Point where you provide your Item to
us (and if you provide your Item to us after the relevant Latest Acceptance Time,
then we aim but do not guarantee to deliver your Item within 2 Working Days of
that day);

Note those aren't actually the correct T&C's where Simple Delivery is concerned, as it isn't 'Non Account', although the delivery aim is still the same.

 


@birsaybooks wrote:
SPECIAL DELIVERY CONDITIONS

Royal Mail guarantees delivery by 1pm the next working day to more than 98% of all UK addresses depending on the service selected.

And they offer Saturday delivery

Simple Delivery is unfit for use on a professional OMP


Royal Mail Tracked 24 offers delivery on a Saturday and Sunday, so it is actually better in that regard.