Assuming you haven't used all your inclusive minutes, it must be that the O2 system is seeing this as a non UK number for some reason, ie Channels Islands or a special number.
The only way to fix it is to get O2 to white-list the number.
Maybe
@Martin-O2 can help with this if you're getting nowhere with customer services?
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.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
