Hi there,
To confirm is the balance owing on your final bill showing a negative balance?
If this is the case this is in fact a credit, not an amount you owe koodo but the other way around.Any credits over $5 on a cancelled account will be automatically processed within seven days from the first bill after cancellation.
The refund will be issued to the payment method on file, but if you used Visa Debit or didn't have autopay, you can expect a cheque in the mail, though it takes a while to show up.
https://www.koodomobile.com/en/help/your-koodo-bill-after-you-cancel