https://support.google.com/edu/classroom/thread/329564864/refund-request-does–give-full-refunds

https://support.google.com/edu/classroom/thread/329564864/refund-request-does-%F0%9D%9A%80%F0%9D%9A%8A%F0%9D%9A%9D%F0%9D%9A%8A%F0%9D%9A%9B-give-full-refunds