Whats happening to the class?

Hello all. I did TKD for a few years then took a summer off. When I started back up, instead of going to my old dojo, I'm trying a class offered by a teacher at my highschool. The guy is more than qualified from what I've seen, and he also trained with the leader of my old dojo. I joined half way through and I've made the four or five classes since then, but two of the times the instructor didn't even show up. One time he said he had a guy coming to service something at his house and had to go home, another time he said he injured his knee. I like the instructor and the classes are good, but I'm hardly getting any training in and testing is coming up. I'd go back to the old place but they keep kicking up the price after every testing just for teh classes, and it was getting ridiculous. Any suggestions?

If you don't have any alternatives, then what are you going to do? Redouble your practice, I guess, it doesn't sound like you have a lot of room for manuevering.