If you need to book via Chimelong’s official website, here are the options: Use a Chinese friend’s phone number: Enter their 11-digit number during registration/booking to receive order info via SMS. Contact customer service: Call 400-883-0083 (9:00–18:00), provide your passport or other ID to verify instead of a phone number. Third-party platforms: Book via Ctrip, Fliggy, etc.—some support international phone numbers/email for easier registration.