If you can prove that they deceived you, then arguably you could bring an action for breach of contract and/or fraud. However, In light of the fact that you last attended there over 7 years ago, the statute of limitations would probably bar any such lawsuit. There are exceptions and you may wish to speak with a contract/litigation attorney to investigate any claim you have.
You should also check to see if there is anything you can do to meet the requirements for the certification you seek. You have an obligation to try to mitigate your injury/damages if it is at all possible.
If they made misrepresentations concerning accreditation and job placement, they may have violated the NJ Consumer Fraud Act.
There is unpublished case from 2012 - Suarez v Eastern International College - which held that a school that misrepresented its accreditation might be liable for consumer fraud.
There is also a recent - 2013 - decision by the NJ District Court holding that a class action against a law school in Delaware (Widener) could proceed on consumer fraud claims because the school had, among other things, misrepresented job placement statistics.
You would have six years from when you first learned of the misrepresentation to file suit.
Note that attorneys typically do not take these types of cases on "straight" contingency and most will likely require a retainer and contributions towards costs since the school has deep pockets and it will likely be a protected, expensive process.
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