Oh mate, I know exactly how you must be feeling.
I failed my first test back in Feb, and my retest came through… the day before my test, all the Driving examiners walk out over here too… man, was I gutted.
I just had to wait for another date to come through.
Are the Driving Standards going to pay for your retest??.. ours did over here.
Good luck ate, hope it comes round sooner rather than later… 