Broken-Mobile™ & Break-Fix™ t/a Broken Apple, LLC

The provider failed and refused to return our ASUS Google Nexus 7 and $53.68 to us, and has repeatedly misled and/or lied to us about the state of their repair efforts.
We contacted them on 1/30/14.  Our device had a cracked screen.  They said they would order the repair part, and we provided 1/2 the repair price ($53.68).  In early March, they said the part had arrived, and we dropped off the device. What has followed is 3 months of broken promises, lies, and unconscionable business behavior.  And we still don't have our device back - and they still have our $53.68.
We attempted to contact them a few dozen times, through e-mail messages, phone messages and visits to the Manassas VA shop.  Every visit was made during their advertised business hours, but the shop was closed every time.  With only a couple of exceptions, they failed to return any of our voice mail messages or respond to any e-mail messages.  On the very few occasions when we did make contact, they added insult to injury.  One time, they told us the device was ready for pick-up and that someone would be at the shop until 6:00.  We arrived shortly after 5:00 to find the shop locked and no one answered our knocks on the door.  Another time, they said they would mail the device to us, unrepaired, and return our $53.68.  That was over a month ago, and prior to many more unsuccessful attempts by us to reach them. 
After we complained on provider's Facebook site, we received an e-mail message from a representative of the provider, a Michael Hivnor, on 5/28, stating that he would contact us to discuss this matter.  He failed to contact us, however.