Payment into non-designated banks not treated as tax payment; one-time transfer to designated banks allowed with concurrence. Payment of service tax into non-designated banks does not constitute valid payment of tax; as a one-time administrative remedy, amounts deposited in non-designated banks may be transferred to the appropriate designated banks in consultation with and with the concurrence of the Pay and Accounts Offices (PAOs) of the respective Commissionerates to address genuine mistakes in payment routing.