Bad luck!
As far as I am aware the option to 'wipe the slate clean' was only available for the early disaterous sittings. I think you'll find that it was withdrawn last year at the same time as the marking ajustment system and the free firt re-sit.
You should find the definitive somewhere on the CAA web site :
www.srg.caa.co.uk
good luck
[ 18 July 2001: Message edited by: clear prop!!! ]