@Arthur52
There is a cost for doing this if using a messaging app, so a spend cap may inhibit sending Guide: Spend Caps & Charge to Mobile on O2
Otherwise, let us know how your are trying to send and on what phone and we'll try and help further.
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.