Incredible to think EE are cutting things so fine.
Apparently DPD may not send notifications for delivery tomorrow until around 6pm.
So, if like me, you need to be at home to accept the delivery, you can't arrange anything until this evening.
I've had to arrange to work from home tomorrow 'just in case' - and considering they are quoting delivery anytime within 21 days, with a notification the day before, there are going to be A LOT of missed deliveries.
That's about right though, really.
If they're accepting packages to ship up to 4pm, then their planners won't be able to route plan until everything is in. otherwise they'd just be constantly replanning or adding packages to the end of the run - highly inefficient.
At least you'll get a time slot with DPD. Most other couriers just give a day, so you can't plan any of your day at any point.