What do I need?
A credit card to verify you’re over 18.
Step by Step Instructions
On your child’s smartphone, go to mobile.three.co.uk and select ‘My3 account’.
Scroll down and select the ‘Security’ icon.
Select ‘Update adult filter settings’.
You will now have to use a credit card to prove your age, afterwards you will be able to restrict the adult content and create a PIN code for future changes.
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More to explore
Here are more resources to help you keep your child safe online.