You can renew your loans yourself
A loan can be renewed if there are no requests for it and if your total amount of fines and fees is not over 10 euros.
Textbooks can be renewed max 10 times and if there are no reservations before that. After 10 renewals you need to return the textbook. This restriction does not apply to books from the general collection.
If you cannot renew your loans because of a break in database or of another technical problem you can renew them by phone, by e-mail or with the web form. A break or a technical problem is not a reason to cancel the possible overdue fees.