I complete agree with you on this. Surely for a 2nd class order with 2 day dispatch you’d be looking at Friday at the earliest for delivery. You’d have be dispatching today by tracked 24 for it to be guaranteed delivery on Wednesday. It’s just not possible.
I spoke to EBAY on the phone this morning regarding this issue and they said it’s the information from the Carrier ie Royal Mail etc that pulls through to their system that dictates the estimated delivery dates displayed and not something they set. Needs sorting out really because it’s not accurate at all and it reflects bad on us business sellers.
At one point last year I was using Royal Mail tracked 24 to gain the EBAY premium service badge but it was costing me like £4.29 per item and eating into my tight profit margins so just wasn’t sustainable.