The FT makes no such claim, they state that the lots were destined for AZ distribution site in Belgium and that the local company has no further knowledge.

The comment about COVAX is a general concern about EU export restrictions and not connected to the lots discovered.

The BBC is reporting that both UK and Italian governments say that the doses were destined for Belgium. I haven't got a direct link, it's in the BBC's rolling updates.

yes, this was confirmed by both the EU and AZN.