CONTACT WITH US
We are here to advise you, answer your questions, and provide you with the best experience. Don’t hesitate to get in touch with our team – we’ll be delighted to help you.
Leave us your details and we will contact you as soon as possible.
Commercial Customer Support | T: 16500
Working days from 09h to 19h, free calls from all national fixed networks and ONI mobile network, 30 cents/min (VAT included), from other mobile national networks.
E: 16500@oni.pt
Mobile Service Customer Support | T: 16502
Helpline for activating or deactivating the portability announcement, to access tariff information and mobile customer support.
24 hours a day, 7 days a week.
Free from Portugal, from abroad dial +351 928 519 999 (Free in the Eurotariff zone, paid in other zones according to the roaming tariff in force).
Customer Ombudsman | +351 300 504 548
Point of contact for Digital Services (Digital Single Act/DSA):
Technical Customer Support | 800 500 800
Everyday 24 hours (free)
Billing and Litigation | +351 211 154 300
Tuesdays and Thursdays from 15h to 18h
General | +351 211 154 300
Working days from 9h to 18h
Roaming Support | +351 928 519 999
(from abroad)
Available 24 hours a day. Free calls at the Eurotariff zone; paid on the remain zones according to the roaming price list.
HEADQUARTERS
Rua 3 da Matinha, 2º Piso, Edifício Altejo
Lisboa
1950-326 Lisboa | Portugal
T: (+351) 211 154 300*
F: (+351) 211 154 399
E: geral@oni.pt
GPS COORDINATES
38.75° N, 9.1° W
* Working days from 9am to 6pm.
BRANCH OFFICES
PORTO
Rua de Gonçalo Cristóvão, 347
Edifício MAPFRE – Sala 509
4000-270 Porto
T: (+351) 220 009 080*
E: geral@oni.pt
* Working days from 9am to 6pm.
