Bought a 3 day pass for our 4 day stay in Lisbon - useless except for 1 day as they do not send a ticket to your phone as expected but just link to 3 separate day vouchers that require you to go to the railway station ticket office EACH DAY to get the actual pass for that day, and it was not always convenient to go to the railway station. We met other tourists at the station that had the same problem - they had expected to get tickets sent to their phone, only to realise that they had to go to the station ticket office to collect it. The system should email a day ticket to your phone that can be used on the transport, and preferably also added to the wallet, then it would be a good system.
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