@W88
You can only upgrade to the latest available tariffs im afraid, and those linked to the phone you are looking at.
The other way is to look at the likes of clove.co.uk and buy the phone sim free and pay for it in full, and then you keep the same tariff.
- Xperia 1V - o2 and Spusu
- Pixel 8 Pro - o2 and Vodafone UK
