By filing a dispute with your CC company, you should be able to get the charges reversed. You will probably have to leave the machine untouched while you work through the issues.
If you bough the machine based on a web ad or configuration, you can save it as a PDF and then scan your delivery receipt and/or system configuration settings and then compare.
You will get faster suction from your CC company because they hold the purse strings (

) and can reverse the charges at the push of a button.
Good luck and keep us posted.