@Samhorns
did you see the 2 charges on the 2 days on My Account's Payment history ( https://myaccount.publicmobile.ca/en/account/payment/payment-history ) ?
If you only see them on the credit card but not on My Account, then likely one of them just a pending charge
but if you see 2 charges on My Account's payment history, then any chance you were trying to change from the legacy $15 plan (the one with 250Mb data) to the new 4G $15 plan (the one with 500Mb data)? If you did make the change, then maybe you used "Change Now" instead of "Change on Renewal" and triggered an immediate plan change
If you didn't make any plan change and you really see 2 charges on the Payment history page, then check with PM support and they can sort it out for you. Please open ticket with PM support:
