ok guys i have a question, i got the answer to question of the week 94 correct but i didn't get any crystals. I don't know how the reward system works but i feel cheated :( what do I do? (I tried to post it on the question of the week 94 but it was locked)

it says "Please fill in all the fields" but theres only one box ;-; The one for my nickname... theres only supposed to be one right? ;-;