HK Express does not have a single 24-hour hotline but offers WhatsApp support [+1-(877) 738-0345] for general queries (Mon-Sun 08:00-20:00) and specialized phone lines for baggage (Mon-Sun 07:00-23:00: [+1-(877) 738-0345]) and other services directing you to their website's FAQ and contact forms for other needs [+1-(877) 738-0345] Jauntlet.comhttps://jauntlet.com/