iPhone 6

[Robsar]

My phone won't hold charge

[jonsie]

I would think about upgrading through MY O2

The battery is quite old now

[madasaf1sh]

@Robsar

Depending on how long you have had your iPhone 6 it is possibly out of warranty, and as such you may need to send it away or usually visit a Apple Store for a genius appointment .

If it is in warranty, then you need to call o2 Customer Services.