We need to update our roaming website as it shows roaming charges for those countries where we don't have local network o2 partner or can say we don't have 'Pay as you go service'.available. For example - Vietnam.
It should be updated on Roaming Website that no roaming service available for these Country when such particular country is entered or selected to check the roaming charges. Thus members will prepared or will look for an alternative while roaming into this countries.
If, implemented then there will be less or no queries for Agents and on community forum regarding these countries and also perfect Roaming Website will be completed which provide not full but at-least most of the info before members leaving UK to other Countries.