I have just read your post in Lincolnshire and was about to say post here but you beat me to it..
I really do understand how you are feeling right now, it's a sickening time and my heart goes out to you.
On a more practical note in my opinion I think you would have good grounds to appeal. I think it's appalling your child was put through this! It's stressful enough without the added pressure of having to resit it 10 days later because of their
mistake. How many points was a pass mark? 4 points doesn't seem that much to me.
Etienne and Sally-Anne are the best people to answer your questions and give you advice, both were invaluable to me.
Sally-Anne will be around shortly, she is never to far away and I'm sure Etienne will pop up during the later hours.
In the mean time register so you can take full advantage of what this website has to offer you.. It's free and you will get no spam I promise..
One thing I will promise you from this site is lots of support.
Take care and remember you are not alone..