Thanks guys - did all of the above. You wouldn't know of course, but I have been buying from the webstore for a few years now

. This is the first time it has happened to me. I have read about it happening to other buyers.
I finally sent an email and got a reply saying yes it was glitching out yesterday and to give them a call. Did that this morning (had to get up at 3am!

) and sorted it out, although the serials are still not listed on my account, at least I can now install the pack.
Cheers
Dennis