Complaint against Store Employee

There should be a number and name on the window or door with the owners name and number. Could be an individual could be a large company owning many locations 

First step is to find out if it’s an authorized retailer or a corporate store. 

There is no formal complaint process. Either contact the store manager or file a complaint through the BBB. Be aware that employees in authorized retail stores are not ATT employees. Authorized retail stores are independently owned and operated.

Thank you for the help. They are an authorized retailer.