[edit: nevermind...based on another thread Mary_M is helping! Awesome! Leaving this long post for future reference in case others stumble into similar circumstances]
Based on this page, you may be able to kick start things without a Mod (see the Definitions section, Failed Activation).
However, self registration (after waiting 24 hours; credit card charged) requires knowing the phone number (either the port-in number, or the assigned number if picking a new one). Do you have the assigned number anywhere?
If so, go to the My Account sign-in page at https://selfserve.publicmobile.ca/
Instead of signing in, click "Create" to self register. First item asked for is the phone number. For more details on the Self Registeration process, see this post (it references port-in, but self registration can work for new numbers too).
Mods can go further without the phone number of a failed activation (e.g. with the SIM numbers). If you're still stuck after trying self registration, Private message a Mod with the required details.
Hopefully you can find the phone number and that path works. Otherwise it's private message and wait... Hang in there.
