After waiting for 25 minutes I get through, somebody says how can they help and then they cut me off ! So very rude and completely infuriating ! I won't bother again which is what they probably want !
Reach O2 CS using Social Media, @Johnh2 - link just below has the three ways - Twitter/X, Facebook Messenger and Instagram - leaving you in control, and not glued to a phone for ages. Good luck!