The process is pretty annoying, there is no option to do it yourself if you don’t have access to your old number or that simcard. You need to either visit a bell store in person with a photo ID, or call lucky mobile self service line, tell an agent that you need assistance registering a new simcard or Esim and don’t have access to your old one and you can’t get the verification code required for the change.
They have a security restriction where they then call you to confirm your identity, but instead of asking normal security questions, they have to call you back on a different number that you have called frequently off of your mobile device before. ie - a partner, close friend, work phone, home phone, ect. There is no way to do this change on your own with self serve.
It’s not very user friendly in my opinion. I needed to switch my service over to a new SIM when I was away, and didn’t have access to any number that I made phone calls too, so I couldn’t activate my new simcard until I was home.
