on 27-03-2020 16:24
You'll have to call 4445 to get customer service to change it sooner.
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
on 27-03-2020 16:25
It will change on the anniversary date unless you ask customer service. Getting through for non urgent isses will be difficult.