http://europa.eu/rapid/press-release_MEMO-11-485_en.pdf

Adesso comprendo il motivo di cotanto silenzio:

Mobile phones operators would have to inform their customers from 1st July 2014 that they had the option to buy a separate roaming contract.

From that date, if you took out a new domestic mobile phone contract, you would also at the same time be able to select a separate mobile roaming provider.