https://furbooru.org/forums/dis/topics/1-888-393-1305-united-airlines-24-hour-cancellation-policy

https://ibsurvival.com/topic/81962-latest~frontier-cancellation-%F0%9D%9F%99-%F0%9D%9F%A0%F0%9D%9F%A0%F0%9D%9F%A0-%F0%9D%9F%9B%F0%9D%9F%A1%F0%9D%9F%9B-%F0%9D%9F%99%F0%9D%9F%9B%F0%9D%9F%98%F0%9D%9F%9Ddoes-frontier-give-you-24-hrs-to-cancel/

https://support.google.com/admanager/thread/306355591?hl=en&sjid=6107342367599488802-NC

¿Cómo hablar con un asesor en Expedia- Call Instant

https://furbooru.org/forums/dis/topics/1-expedia-airlines-cancellation-policy-for-flights

𝔼𝕏ℙ𝔼𝔻𝕀𝔸 CANCELLATION POLICY (𝟐𝟒 𝐡𝐨𝐮𝐫𝐬) cancellation POLICY

How to Cancel a Flight with American Airlines?

https://ibsurvival.com/topic/81569-how-do-i-cancel-my-youtube-member-subscription/

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https://support.google.com/admanager/thread/306371122?hl=en&sjid=8569510049303932121-NC