If it is an excess that you cannot do without or if you graduate it is likely you can go to the bursars office and request a refund. Hello everyone, as others, I need help.This rule explains the procedures relating to refunds or credits for the overpayment of taxes, penalties, or interest. In writing: Write the Office of Administrative Hearings (OAH), P.O. Box 42488, Olympia, WA 98504. Tuition and related charges may be paid online using your checking or savings account. A Web Check payment results in an electronic debit of your bank account. Please call 1-800-772-1772 or your local field office and we may be able to process your waiver request quickly over the phone.