I ordered some parts this morning from an online parts company and these had a £5 + vat delivery charge...fine. An hour later I realised I needed something else and this would have taken my order over the free delivery threshold. I phoned them up hoping to add these items and was told it couldn't happen even though they had not been dispatched yet. My fault I know, but now have to pay another £5 + vat and have no doubt they will come in the same box. Thoughts ??