I had a similarish problem.
I had taken and passed all the CAA written exams. I was due to sit my GFT the following weekend when my company sent me to Australia to work at short notice.
Arrived there and found out if I wanted to sit the Australian licence I would need to do their exams and fly a bunch of extra solo time and of course prove what I had already learnt. This I did, and guess what? Yep you guessed it I had to come back to the UK at short notice without sitting the Australian GFT either. Now my flight time is growing now.
Anyway I arrive back in the UK and did not have time to fly for a month or so. I then found out that because I had not completed by the end of 2000 my exams were worthless and I had to do the JAR ones. Very annoying.
I finally took a week off sat the exams and passed my GFT. A wonderful day I can tell you after all the hassle of getting there.
Still the final twist of the knife is I got home and my girlfriend left me that afternoon
. Life is a bitch eh?
So keep in there and you will get it done in the end.