If you were hurt at work, your worker's comp insurance carrier is going to be primary.  Also, if you request coverage under the group plan, there is a possibility that you will have to falsify a claim form because the form may ask whether the injury occurred at work.  This could amount to insurance fraud if you do not provide accurate answers on the claim forms.  In Florida, the law protects against retaliation by an employer for filing a workers comp claim.  However, based on your description of the events your situation is not entirely clear in terms of whether a notice of work injury or workers comp claim was ever filed and therefore it is probably a good idea to obtain legal advice before you take any further action.