Hello Bearback,
Sorry to hear of your situation. However, you should note these forums are community-driven and not intended as a venue for customer services. We do not have access to customers' accounts nor would we be in any position to assist you with your matter.
Unfortunately, I'm not sure whether you'll be able to find a solution before your child's trip tomorrow morning. As you note, the process to update SIM information requires verification prior to the change. If you are not able to receive the SMS verification notification, you would generally have to go to a store to verify your identity. That said, it has been possible to verify customers' identity over the phone under certain circumstances. While phone verification might not be as secure as having to provide photo identification at a store, it has been accepted under specific situations. You would likely need to contact their Validation team in order to do so, though. You would get directed to them after contacting customer service.
All that said, I'm not sure whether customer service or stores are open today given it's Canada Day. Depending on where you live, there may be local mall open with a Fido store also being open.
I understand you don't have any spare eSIM-compatible devices, however, do you have any friends or other relatives with eSIM devices? They wouldn't need to remove their existing eSIM, only install your eSIM to receive the verification SMS. I understand it would not be an ideal situation. Though, given your timeline, it might resolve your issue.
Hope this helps 😀
Cheers
