Spending 2 and 45 Hours on a study

Spending all this time and energy on a study, only to find out there is another part to the study that was never mentioned in the description or instructions, is frustrating.

I had to force-submit the study after completing the first part because there's no way I can complete an unannounced second part, which could take as much time and energy as the first one. Essentially, the study would take more than 4 hours.

Also, the study had only one total available place which was taken by me.

I have informed the researcher about this and we'll see how it goes.