Cover Letters and Follow Up Notes. Show more Cover Letters and Follow Up Notes.I understand that the general time frame for CAPS to process my application for a medical withdrawal support letter could be up to 60 days. Students requesting an administrative withdrawal or refund of tuition and fees must submit a Student Appeal Form to the Office of the Registrar. Dear Admissions Staff, After careful consideration, I have decided to withdraw my application for admission. Please withdraw my application and accept my thanks for your help and consideration. Sincerely yours,. Signature. All students taking a leave or withdrawal from Rice should submit their written request on an Undergraduate Separation Request Form. But how I withdrew was I talked to my advisor success coach. Whatever you call them.