From 15th June, all existing O2 pay monthly, pay as you go and business customers will get inclusive roaming in 47 European destinations.
Clarifying O2 UK's Tougher Excess Data Charges for EU Roaming - ISPreview UK
O2's the Odd One Out as They Rule Out Roaming Charges in Europe
No Contract To Sign No Monthly Bills Official Dealer Pack Great Call & Text Charges
O2 Pay As You Go Sim Card
O2 Travel £2 data deal in time for new Euro roaming rules - CNET
O2 admits slowing down customers' internet speeds dramatically when roaming, The Independent
How Does Roaming Work on Virgin Media O2? - Tech Advisor
EU Roaming Changes from 15th June 2017 PAY AS YOU - O2 Community
EU roaming charges are back for O2 customers TODAY and EE is next
Virgin media and O2 will not reintroduce EU data roaming charges - LBC
O2, EE and Vodafone customers issued warning over new roaming charges for Europe - MyLondon
Roaming Charges in 2022 - Vodafone, O2, EE, Three & More
O2 Data Roaming
Mobile roaming charges for EU compared, including Vodafone, EE and O2
