If the business is run out of a house and the general public can not just show up and enter during business hours, it is charged residential. If there is a seperate entrance and the general public can show up and enter during normal business hours, you are due that refund. That said you will never be able to get it for past packages. If in the future you get that charge, file a concern to go to the destination center in TN and request a call from that center team. Tell them what the problem is and ask why the driver is either driver releasing, aka DR, or after signature putting in as res. Sounds to me like the pkgs are going to someones house, not a true business location.