It’s part of the Three Supercharged New Pay As You Go offer and this Unlimited Data Pack us usually £30 per monnth.
As part of the announcement, the new Three UK app has now added further control over spend and allowances. To get the new Unlimited Data Pack, head to the SIM ordering page at Three and download the new Three UK App. If you’ve joined Three since March 12th, you can purchase the Unlimited Data Pack for £20 via the app today.
Head to the Three Supercharged Pages for more info.