Retired Federal Employees & PMB #s - Question!

Have been fulltime since 2005...I am retired Federal and DH retired state employee. We use a mail forwarding service SD and use # not PMB for our box number in our address.

This is our legal address and the ONLY address we use for everything... banking (BOA), BCBS (EPO plan) health insurance from State of MD retirement, both pensions, DL, vehicle registrations...absolutely everything and have NEVER had one single issue in 9 years!