It’s probably not escaped your attention that next weekend is Easter weekend and most of the country will be taking four days off from Friday 3rd April to Monday 6th April. Certainly Royal Mail (who this seller ships with) and Parcelforce, along with most other couriers, will be taking a few days off.
It looks like eBay simply haven’t updated delivery promises to take account of the Easter Bank holidays, at least I’m guessing that the one day I can be pretty sure my purchase will definitely NOT turn up is Friday the 3rd.
Whilst there’s little you can do, it’s at least worth making sure if marketplaces are promising deliveries on days when postal service and couriers don’t work that your customers are aware of this. Although in truth your customers probably aren’t daft and would be amazed if a courier knocked on their door on a bank holiday anyway.
Edited to add 8.41am 31/3/15
eBay have told us “eBay is aware that Easter public holiday dates are not being correctly accounted for in delivery estimates, and we are working hard to put this right. We will provide a further update as soon as possible.”