Does American offer fully refundable tickets(quickly join)

https://www.devex.com/people/speak-with-a-representative-at-frontier-representative-dfbdfb-2462577

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https://maketoys.zendesk.com/hc/en-us/community/posts/33812154601876-Reach-Out-Today-How-to-Connect-with-a-Real-Human-at-QuickBooks-Enterprise

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https://www.devex.com/people/servicio-al-cliente-como-hablo-con-alguien-en-united-2462570

Explanation of How to Reach Lufthansa Customer Service via Phone or Chat

【𝖈𝖚𝖘𝖙𝖔𝖒𝖊𝖗𝕾𝖚𝖕𝖕𝖔𝖗𝖙】Rápida-Does Qatar have a free cancellation policy

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Does American offer fully refundable tickets?