Can you log into your Public Mobile account, and see what SIM card number is attached to your Profile? I think you can change it to a new physical SIM number, if you can pick one up. Otherwise, you may need to apply for a new one through Customer Ser...
Physical sims are charged $10, but e-Sim is free. If you don't receive the SIM in the mail within 10 business days, submit a ticket, and an agent will advise you on what to do.