How long ago did you do your part of the activation process including topping up by at least£10/purchase a goodybag?
Once this has been done,activation should then take 30 minutes to fully complete but can take upto 24 hours.You'll then be allocated your number which will appear on your homepage.
Also,your device/phone has to be either unlocked or locked to o2.
Hello & Welcome...
activations usually take 30 minutes but can take up to 24 hours...
Also some handy tips below,
1, Turn On airplane mode ( if you have this option ) And then turn Off after about 20 seconds[ Alternatively ] Take the battery out for 30 seconds and then place in back in and power On the handset Etc ( This option is not for iphones and any other phones that your carnt take or get the battery out the handset )•
2, See if theres any faults here by typing in your post code
3, Try http://is.gd/manualroam