https://workflowy.zendesk.com/hc/en-us/community/posts/30935951122580-United-Refund-Policy-%F0%9D%9F%8F-%F0%9D%9F%96%F0%9D%9F%96%F0%9D%9F%96-%F0%9D%9F%96%F0%9D%9F%90%F0%9D%9F%97-%F0%9D%9F%8F%F0%9D%9F%8F%F0%9D%9F%8F%F0%9D%9F%95-What-is-fully-refundable-on-United-Complete-Travel-Guide