NEWS JUST IN!!!!
UPS have been in touch regarding the 'possible match' parcel I mentioned in the OP.. It had, over the last day or so, been sent to their Lost And Found depot. (Apparently it's too difficult to identify in situ..)
Yes, it has taken over two days to identify and! ... It's not a Bass Guitar in a Bass Guitar Case.. It's not a BIG box with a clear address on it to me. They did however manage to identify it was a guitar, so I will give them that. 😳
I understand the notification mail offered no sympathy or any sort of 'customer service' that we might hope for when a company is sorry for solely messing up on a grand scale. Nup. Nadda. Nothing.
So, too many days after they lost the parcel (It was lost just after collection on Tuesday 28th, reported not arrived by me Wednesday 29th) UPS still have no clue how a huge box can go missing. I think it's time for the police to get involved; even the shop's UPS sales manager thinks it is 'odd'.
Feeling really rubbish.
EDIT: Interestingly, following the advice above, I decided I would start a Tweet to UPS regarding this mess. I went to the UPS help page on Twitter and literally the whole page is inundated, full of customers with problems. I have no idea how my post will even get seen. Well, there you go. tells the whole story really, doesn't it?