https://community.acer.com/en/discussion/708650/does-delta-give-you-a-full-refund-1-888-850-2860/p1?new=1

https://community.tableau.com/s/idea/0878b000000Eyf1AAC/detail
https://community.tableau.com/s/idea/0878b000000Eyf6AAC/detail
https://community.acer.com/en/discussion/708650/does-delta-give-you-a-full-refund-1-888-850-2860/p1?new=1