
Quoting
Mr. Knowitall
You told us,
If in fact that did not happen, and the court found only that you owed the $13,600, and when entering its order consistent with that finding the court found that you were capable of paying your restitution within six months, then you would presumably want to petition the court to give you more time to pay based upon your actual means and ability to repay.
We're entering the dangerous world of guessing. I suggest you work with your lawyer to figure out exactly what happened, and plan your next step accordingly.