You have certain rights under federal laws related to resolving errors and requesting information about your mortgage loan. Notices of error and requests for information must be directed to: GreenState Credit Union, Attention: Mortgage Servicing Department, 2355 Landon Rd, North Liberty, IA, 52317. Your submission must be in writing and include the name of each borrower, the loan number, and a description of the error you believe that has occurred, or a request for specific information regarding your mortgage loan.