Q. A person who learns in a Kollel where they have certain rules which he wasn’t aware of, such as that you have to say the late rabbi’s name before learning and no breaks allowed and if one arrives ten minutes late they take off $2.50. Does he need to give back any money from what he received or just be careful to follow the rules in the future? 
Also when they say no sichos chullin or taking phone calls, does that mean to try to the best of one’s ability or it is literally assur? If one did not adhere to their rules perfectly, what should he do?
A. Horav Shlomo Miller’s Shlit’a opinion is that if you did not keep the established rules. even if you were not aware of them, you are liable to the fines involved.
As far as the scope and inclusion of any other rules, you should consult with the Rosh Hakollel or the person in charge.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a