I have always told my Customers that Call Backs are Free if there issues with any work I've done. A person would believe that if a Customer had those issues they would have called back. When I get a Callback, I usually respond in 24 Hours. Apparently Shel9300 did not feel the need to call back to let RGRmech know of these issues. RGRmech had an employee in 2020, those same Rules apply for that Employee.
Are you the owner of this business?