Add bolt on won’t work

[MiaSlim19]

I’d like to add a bolt on of 12gb but it won’t let me I need it right now please

[pgn]

Try again this morning, @MiaSlim19 - O2's systems update around the time you tried to add the bolt-on. If still no joy, contact O2 on 202 or using any of the ways in here: Guide: How to find help & contact O2 

Good luck!