O2 is a leading mobile network operator owned by Telefónica. O2 provides mobile phone subscriptions as well as sells mobile phones, smartphones and tablets. You can get all the helpselecting a mobile subscription in O2's stores. Opening times to O2 stores nearby can be found here.
Mobile Phones and calling/data subscription plans are sold by the operators through their stores. Vodafone, EE (Orange, T-Mobile 4GEE), Three (3) and O2 are the most common providers of mobile phone and smartphone services. Opening times can be found on wintersportwochen.info.