Order out of stock?

Hi, got an email on Monday to say my order due on the 3rd has an item that’s out of stock, so I can either wait or remove the said item and try again. Problem is I can’t see anything anywhere that tells me what the item is. Seem to be stuck in limbo, it still says order due on 3rd. I’ve mailed for help but no answer? Any ideas?

out of interest what was the item?
One of my orders seems to have part shipped.

Customer service just got back in touch to say it was the flavour boosts tasters