If you are an existing Three customer and moving to a new address, you can use the iammoving.com change of address service to notify Three that you are moving for free!
iammoving.com is very simple to use and also lets you select from over 1500 other companies to make a change of address Three notification. Simply click here to register with iammoving.com and then add Three to your change of address list.
If you are already signed in, then you can add Three to your list here.
iammoving.com guarantee never to sell or abuse your data
We have been in partnership with organisations on our site for several years, all guaranteeing they update your change of address notifications if sent through us, including many of the big organisations such as: