You need to wait for the activation. In most cases..it may take up to 48 hours before ur line gets activated. You will receive a sms confirmation
Do you already see the Globe signal bars? If yes, then there might be a problem with your phone's settings. If no signal yet, then your SIM is not yet activated. Either way, please call 211. If you still don't know your mobile number since it may not be activated yet, then you need to provide 211 with your SIM serial number which you can conveniently find at the SIM card pack or the back of the SIM itself.