|O2's Best Ever Contract|
I have my Mobile Wifi with 3 , who charge me £15 for 5 Gb on a monthly rolling contract which is more than adequate . I seldom come anywhere near that but its a good data package. Another company offers unlimited data on a similar rolling contract except in the small print is capped at 1 Gb per month.
So when you are taking out a new contract ensure you check the small print. Probably one of the most honest I've encoutered is Orange and as I say 3 offer excellent value for money , but a lot of companies are still trying to take you for a ride . Be wary!!