. What should I be
> doing in this situation? I can probably get brief access to the
> computer to sort it out,
If at all possible, yes. It will need Internet access. If this is impossible email us.
> but would I have to go through the authorization
> to be able to delete it?
Yes.
> Is there a reason there's no option to delete
> at the pre-authorization stage?
Otherwise it would not be necessary to authorize a license, as one could install, use during the week grave period, delete, repeat.
> Also, what happens after the grace period
> expires; does the licence self-destruct, or does it just become inactive?
Becomes inactive.
Sorry for the confusion on how it works,
Chris