Each semester, in which you would like to receive VA benefits, you should notify the Certifying Official of your continued enrollment and the number of credits you are taking. If, for whatever reason, you do not want to receive VA benefits, you must inform the Certifying Official of this fact.
Those receiving the Post-9/11 GI Bill do not have to verify their attendance through WAVE. Your school certifying official is responsible for verifying your attendance with VA at the beginning of your term. You are responsible for ensuring that your school certifying official is aware of your enrollment, and any subsequent changes in your schedule
If you are receiving benefits under Chapter 30, Chapter 1606, or Chapter 1607, you must verify your enrollment each month with the VA via the Web Automated Veterans Enrollment (WAVE) system or you can certify via phone at 877-823-2378.
Link to WAVE: https://www.gibill.va.gov/wave/index.do