The system is automated and regardless of what customer services tell you, the system will disconnect you if it sees an unpaid bill.
It cannot be overridden so the only way is to pay the bill.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion.
This is not Customer Service so we are unable to help with account specific issues.Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)