I recently switched from pay monthly to PAYG. I have a final bill of £13 to pay. Normally I'd be able to call and pay over the phone but I can't at the moment as the call centre is closed.
The £13 is now overdue.
I can't make payment through the app or the website as it is taking me to the sign in page when I try to view the bill, it's a constant circle.
How can I pay what I owe?