I am in the same boat.
I have a test booked for tomorrow if it is cancelled due to weather or I get a partial pass, I can't get another test slot before the middle of July.
Therefore if I don't achieve a full pass, I will have to do a fully approved course 55 hour course.
I spoke to the CAA on Friday of last week and they said that I could get an inital IR test slot within two weeks, and today they are fully booked.
Is anyone else in the same situation ???