You can cancel the transfer anytime until the recipient accepts it. Generally, it takes 30 minutes for notifications to be sent to recipients. To cancel a transfer, click on the 'Cancel' link beside the list of pending transfers.
If a transfer hasn't been accepted within 30 days, it will automatically expire and the sender will be notified. The sender can either click on the 'Cancel' link beside the list of pending transfers or let Interac® cancel the transaction. Money will be returned to the sender within seven days of cancelling the transaction, however, fees charged at the time of sending the transfer are not reimbursable.
You can also send reminders to recipients who have yet to accept transfers by clicking on the 'Resend Notice' link beside the list of pending transfers.