I feel the same, Textfugu was expensive, It was fun at the beginning, very promising, it felt like magic, it showed me Lang8 which is a good website, but at the same time Textfugu doesn’t have any updates at all, so it feels like the admin doesn’t care about his website or his learning method. Instead, he’s developing other web platforms to take more money out of its users.
I guess the SRS system is not for me, I couldn’t stand it anymore after reaching the end of Season 5, so I gave up on textfugu and now I’m back at the traditional way of learning a language (writing a lot, reading more sentences, doing many more exercises).
It was nice If I could get my money back but I doubt that it would happen.

To tell you the truth, I was demotivated after the end of season 4, I was at the dip.
Right now after some time, I’m at season 5 and I’m starting to notice that the method throws you a lot of grammar and vocabulary but it doesn’t have short stories for you to read and practice like we do when we are learning any language, so they tell you to keep practicing with the SRS system(Anki), but the more you study the more vocabulary you have to memorize, and I think it would be much easier to associate these words with pictures instead of trying to memorize with Anki, which is very boring, so I’ll always type the new words into Google Images, that really helps me a lot.
I still have lots of vocabulary lists but the method doesn’t give us much examples on how to use all of these words. I don’t think it is a very good method now, because a good textbook should make us practice everything.
I’ve noticed that by the end of season 8, it has only two short stories, so will they throw me tons of grammar and expect me to read something only at the end ? That’s demotivating.