Data roaming bolt-ons

Going on holiday or travel frequently to the UK & EU?  
Simply add-on the data roaming bolt-ons to use with any smartphone.

Bolt-on	Rental	UK/MB	France/MB	EU/MB	ROW/MB
UK & EU Data Bolt-on	£4.49	£0.50	£0.50	£0.50	£9.22