If the withdrawal process has been completed, we can only cancel the withdrawal if it gets rejected by your bank. We may need to wait for up to 72 hours to receive the final update on the status. If the withdrawal is successful and acknowledged by the bank, any further action would need to be taken up directly with your bank.
We strongly recommend updating your new bank account details as a priority to ensure that your future withdrawals are not affected. This step will help to facilitate smoother transactions going forward.