Hi, having ported my number across to an O2 business account last October, and the phone working fine up to now, my number is suddenly not being recognised! If you call the number a nice lady says "sorry, this number is not recognised, please check the number" - I've spoken to O2 and they disconnected the number and then reconnected it, but it's now done the same thing again today. If the reconnection doesn't work this time, and they can't see any problem with the network, can anyone advise me on what the problem might be and how to solve it please? Many thanks