How can I change my address?

In order for me to change your address, I will need you to confirm for security purposes your:
1) Date of Birth;
2) Email address that is used to operate the account; and
3) Last 3 letters of your postcode.
I will also require a copy of a utility bill from the last 3 months showing your full name and new address.
Once received I shall update the relevant details and confirm once done.