Please can someone explain what is happening with estimated delivery dates?

Items which are due to be dispatched tomorrow are showing estimate delivery of tomorrow - Friday; it's impossible for an item to be delivered the same day it's posted and there's a high chance it won't be delivered the following day either, considering the current Royal Mail strikes.

Additionally, if a buyer sees an estimated delivery date of tomorrow, they understandably expect the item to  be posted today and I've had buyers message me with this exact query. I've even had estimated delivery times of 2 days before the item is due to be dispatched!

I know eBay have a new system for calculating delivery dates but to give buyers estimated delivery dates which are impossible to meet is incredibly misleading, clearly there's something not working somewhere.

Hopefully this can get resolved, thanks in advance for your help.