For assistance, you can:
• Check Southwest.com
• Call +1 888-807-6661 (US) or +1 44 20 45155552 (UK)
• Approach Southwest Customer Service representatives at the airport for support.
International phone numbers may require dialing the landline numbers +1 888-807-6661 (US) or +1 44 20 45155552 (UK) listed above.

You can also visit a Southwest Airlines counter or contact Reservations by calling +1 888-807-6661 (US) or +1 44 20 45155552 (UK).