I was asked to interview when I submitted my resume online. I agreed, but will I be blacklisted if I don't go
Next time you encounter this situation, you should call to explain clearly, otherwise you won't have a chance to interview in this company in the future. It's hard to say whether the company blacklisted you or not. Some companies will take notes, and some companies may not be too careful, because there are more resumes and more interviews, but from the etiquette point of view, your practice is very bad.