https://support.google.com/admanager/thread/328830327/faq-does-%F0%9D%9A%80%F0%9D%9A%8A%F0%9D%9A%9D%F0%9D%9A%8A%F0%9D%9A%9B-give-full-refunds
https://support.google.com/admanager/thread/328830327/faq-does-%F0%9D%9A%80%F0%9D%9A%8A%F0%9D%9A%9D%F0%9D%9A%8A%F0%9D%9A%9B-give-full-refunds