O2

Hi I have an o2 mobile which I don’t use very often as I live abroad - but I need to maintain a uk phone number for my bank etc. How often do I need to make a call or send a text in order to keep the number “active”?

I have a PAYG sim and number, but only use it infrequently as I live abroad. Nevertheless I need it eg for getting one-time passwords sent through from my bank (they will only accept a UK mobile phone number!). What do I need to do to keep it active,...

I'm trying to make a call to the UK from Malaysia from my Pay as You Go. I've done this before without any problem (apart from the fact its so expensive!) but now every time I dial a number (including 00 44) I get a recorded message saying 'the numbe...