When you first set up the phone, you should have been issued a (temporary) Telus number, and the phone should have connected to the network from that number. The Telus number would have subsequently been displaced by the bell number.
What happens if you put her old SIM in the phone, or uses her old phone?
Did you provision the new SIM by adding it to the new account you created? Usually you need to add the SIM number in the account.