https://www.devex.com/people/spirit-cheap-what-is-the-cheapest-day-to-buy-spirit-airline-tickets-2244530

https://www.t-mobile.com/community/discussions/apple/do-you-have-24-hours-to-cancel-ryanair/159937

https://crm.ridemetro.org/forums/support-forum/bb89fb90-13c1-ef11-b542-001dd80082b2

https://community.hologram.io/t/expedia-refund-eligibility-is-expedia-really-free-cancellation-supportfaq/15091

https://community.hologram.io/t/help-desk-how-to-contact-quickbooks-official-intuit-premier-support-number/15115

https://www.devex.com/people/does-frontier-refund-you-if-you-cancel-faqs-2252520

https://community.hologram.io/t/for-help-why-am-not-getting-earthlink-emails/15113

https://community.hologram.io/t/contact-intuit-quickbooks-enterprise-support-number-by-phone/15085

FAQ-¿Cómo puedo comunicarme con United Airlines

https://community.hologram.io/t/bitfinex-customer-support-usa-1-833-652-4io5-always-here-to-help/15087