Activating Audible membership - giving error

[FizzyColaBottle]

Hi there, 

I have just renewed my sub and selected the Audible Extra - (I have had this extra in the past, and cancelled after the 6 month free amount) 

I have selected to Activate it and after selecting my account get sent to a page that says on:

Activating your membership
This will take a few seconds. Please do not click the ‘Back’ button or try to Refresh the screen.

Then after about 30 seconds or so - I get :

Activation error

We've encountered a problem. Please try again.

This happens on both Mobile and Browser - I have tried multiple times and still no luck.

[MI5]

@FizzyColaBottle 

We’re just customers like you but it sounds like you’ll need someone to access your account which can’t be done from here. If you message O2 on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) , they should be able to help you with this
Thanks