Your employer has to issue either a paystub which shows how the money you earned has been applied, along with the taxes or at least a W-2 early next year. However, if you entered into a written agreement that you were responsible for the training course if you left within one year, then you are responsible for the course absent some bad faith by the employer which caused you to leave. Also, you do not say whether the amount owed to you, less taxes (THE NET), is exactly what the training course cost, more or less. If it is less, then you are certainly enttiled to the balance. I would contact a local lawyer to explain the reason for your departure and see if you have any basis to void the agreement you signed or sue him for breach in some way. I would also determine if you owe for the course then whether you are owed anything additional based on the cost of the course and the net amount you would have been due from your last paycheck.
You dont have an absolute right to the last check if you also have an agreement to pay for the course. The issue will be is there a reason you can avoid the agreement you signed. The only way to know that for sure is to have an attorney review he agreement that you signed.
The answers given are limited to the facts as given and presumed by the answer itself. Without seeing actual written documentation or having a conference to more fully explore the issues, this short answer has only limited application. Make sure to seek legal counsel and provide all documentation to get assistance in making informed legal choices. Bstein@dcfsz.com, 305 377 1505