Three no longer offer the 12GB SIM deal.
That's because you can now get a whopping 25GB data for £8 a month. That's on a 12-month plan and comes with 5G at no extra cost and you'll also be able to enjoy Three+ rewards.
If you are looking to spend a bit less you can get 3GB of data for just £5, while those wanting more data can get 120GB data for just £12 a month.
12GB of data is a pretty decent allowance which enables you to use social media for 4 hours a day, or browse the internet for 6 hours a day. However, those who want to do heavy video or music streaming should consider a higher data allowance. Read our how much data do I need guide to find out more.