Well, it's the same scenario here in mainland uk, today is a replacement BH. Regardless amazon logistics deliver if they want to, royal mail don't though.
Can't say I'm surprised you're not getting your copy today either way. Imagine it'd come from the same mainland distribution centre and simply take longer to get over to NI, no?
Amazon Logistics drivers don't work on a Monday Bank Holiday in Rep of Ireland but do deliver on a Saturday and Sunday (I know this as one of the amazon logistics drivers in Republic of Ireland also works part time for the security firm I work for)
They do delivery on a Bank Holiday in regards to Northern Ireland as that is UK but that has nothing to do with Amazon logistics drivers who work in the Republic
At the moment customers based in Notheren Ireland is not the same in regards to Rep of Ireland but that will change in coming months
NI it's not involved in regards Amazon UK orders for customers based in Rep of Ireland at customers orders done from Replublic of Ireland on Amazon UK website orders comes direct from UK mainland or another EU country to Republic and not from Northern Ireland that will though change soon in next few months
Northern Ireland customers though will be bypassing UK amazon logistics on some products when Amazon Rep of Ireland new fulfillment center Baldonnell Business Park gets operational which will be very soon as in next 2-3 months
That new warehouse in Dublin will cover both Rep of Ireland and Northern Ireland amazon orders and also customers based in other EU countries
When that fulfillment center becomes operational Customers in NI will be getting thier orders shipped from Dublin and not UK mainland and will bypass brexit issues
At the moment in regards to customers based in Rep of Ireland Amazon UK Parcels
come direct from amazon fulfillment center warehouses based in London or Manchester to Amazon logistics
delivery warehouse in Ballycoolin Dublin
for customers who have prime subscription and those orders are delivered by amazon logistics drivers
This is a different location to the new Amazon fulfillment center that will be launching in 2022 in Rep of Ireland
Those that
don't have prime subscription orders are mostly done with An Post or other postal services instead and shipped from UK or Germany or France depending on which amazon warehouse has the stock
Those that don't have prime sometimes may get delivery done by amazon logistics but it's mostly only for prime customers
That is why some customers in Rep of Ireland that don't have prime see tracking for a amazon UK order coming from France or Germany sometimes
Some releases the Amazon logistics delivery Warehouse in Rep of ireland get stock a few days before release date that is how I often get delivery before release date or next day delivery on a lot of my Amazon UK orders
I would of had delivery Monday today but due to new years day been on Saturday
Next delivery date is Tuesday