05-12-2020 11:30 PM
Does it or not?
It does tell you when you make an offer. If item is £10 with P & P of £2, but you only want to spend £10 then you would make an offer of £8.
It is not correct however to say that postage cannot be changed. Seller can edit postage and send an amended invoice, which would be needed in any case if combining postage.
As I did just that yesterday I know it works.