Again thanks for all the advice and help.
Late update tonight is - VAT helpline were very helpful too but were stuck without the tracking ref no. right now.
after 3 days of spam emails to him demanding the information which has been asked for for weeks he has asked for my son's address.
Now he maybe just sending an invoice with the same amount which at least can then be challenged but may possibly be by slim chance he has buckled and is arranging delivery and will have to claim it back himself as he should do in the first place.
Has said he will call tomorrow so will let you all know what he says.
cheers