Your rights in your 401k are determined by the employment contract you entered into with your employer. If you do not have it, the HR department at your company should have a copy of it for you to review. If they have in fact stipulated that you are entitled to a 401k in that contract and have changed their mind, that is breach of contract, but the negotiations concerning this matter likely needed to be had before you formally rejoined the company.
Answered on Mar 07th, 2014 at 11:18 AM