Is the female student entitled to a full refund for the courses paid for, taking into account her listening to old recordings of the professors, and some of them refusing to refund the full amount on the pretext of her listening to these recordings? And would she be considered unjust if she retrieved her money?

It is not permissible to record lectures without the permission of their owners, and it is obligatory to fulfill the condition if recording is prohibited. However, if recording is permitted, the lecturer does not have the right to prevent benefiting from what has been recorded. If recording is permitted but giving it to others is prohibited, there is no harm in giving it away for free for benefit, not for commercial purposes, in order to preserve the rights of the lecture owners. If lectures are canceled, the student has the right to reclaim the fee for the canceled portion. There is no harm upon one who listens to recorded lectures with permission. However, one who listens to what was not permitted to be recorded is not obligated to pay a fee, but incurs sin if he knew of the prohibition.