Appologies if this is seen as not a deal, please move it to the correct forum.
I have a Vodafone sim only in my iPhone and by default they enable content control which blocks a lot of websites, not just "dodgy ones"
If you go to your Vodafone on-line account and follow these instructions:
To remove content control you must be over the age of 18, have the approval of the account holder (if not yourself) and if necessary, prove your age to us.
You can then remove it:
by logging in or registering for My account online, you will need a credit card as evidence of age the first time you change Content Control
go to the My Devices module and select Manage call diverts, call barring and content control
this takes you to the My Settings page
Content control is at the bottom of the page and you can switch your settings there by clicking Change.
If you have not yet registered for My Account we have a help link on the registration page telling you what you will need to get registered. Please read this before you try to register.
You need to pay £1.00 on a credit card to confirm your age, and as a thank you they then credit your account with £2.50.
A profit of £1.50 :-)