To access two free trips, the user must pre-register on the metro's website (at www.metrolisboa.pt) or use the telephone number 213 500 115 (Monday to Friday, from 8:30am to 7pm).

After registering and validating the request, a code will be sent to the user by SMS, to the indicated mobile phone, which will allow the collection of a Viva Viagem card with the two round trips at the metro automatic machines.

The voucher will be available for redemption from the date of sending the SMS and for four days.

This initiative stems from a collaboration between Metro and Lisbon City Hall.