After spending most of Friday holding out for an amazing mobile phone detail, I was left disappointed, so ended up looking around for something.
Not too sure on the o2 refresh deals, but found this, so excuse me if it's not right!
Can get a "perfect" condition iPhone SE 16gb for £221.99, which when having a quick shop around isn't too bad. Can't find it cheaper anywhere else.
To get the deal, click on Perfect on 16GB then choose the tariff which is 20GB Data £29.99 upfront and £8 monthly device payment plan.
So that would mean it would be £29.99 +£8 x 24 = £192 = Total £221.99
Follow the usual steps to cancel the airtime credit of £30.00, and i've copied these due to ease of use, check first comment (thanks to MrGamer123)
I believe I've figured this out right, so please tell me if I'm not so I can invoke the 14-day cooling off period!