Hi T_M_G,
Thank you for your post.
Once you activate the Online Invoice Payments (OIP) option, BPAY will be included as one of the payment methods available to your customers. Currently, excluding BPAY from the available payment methods is not an option. However, I want to assure you that we've already raised this request with the appropriate team for further consideration. I've also ensured that your post is added to the raised ticket for documentation purposes.
If you have any further questions or need further assistance, feel free to reach out.
Cheers,
Princess