Dont' waste your time with the Better Business Bureau.They cannot force a solution or administer sanctions on parties to a dispute because they are a group of private, non-profit organizations
Contact your bank and or credit card company.
Dispute the charge.
File a theft report with the local police in the city they are located. Call your police department also to see if they will take a report.
Contact the State attorney General office in your state and the shop's.
Send a demand letter registered to the owners of the business.
If they are in a strip center, the owner has their contact/lease information. Call them if you cannot find the deadbeats. If they own the store, go to the County tax apparisers office and look up the address online for ownership information.
This is also a federal offense since they used the internet.
Contact usa.gov.
Dont give up, keep after them....squeaky wheel..
Good Luck, hope you did not spend much.