O2

I’ve had not connection for 2 days now I was told to turn my phone off and back on again I’ve done that still not able to make a call not even to o2 and nobody will talk to me on this stupid messaging service o2 has I’ve been messaging all morning an...

I’ve run out of data can I buy more to get me through till my next bill 

Hi Alli'm thinking of changing my phone can i still keep my old number as its a pain changing numbers. TIA