Being sued for an auto accident from January 2015

I recieved a summons yesterday for my husband pertaining to an accident I had on January 15, 2015. I called the attorney listed on the summons to figure out the details. He stated my information was sent over by progressive on a spreadsheet they recieve for non insured at fault auto accidents. I was confused by this because I had insurance always have and was told the last time I spoke with my adjuster about this claim that it was settled and he was closing it out, my damages were handled as well as the other party and that I was the only injured party. The attorney for the other party then stated oh yes I do see you had insurance as her vehicle was repaired but you only had PIP state minimum which is not true and I explained to him my vehicles are financed so I am always required to carry full coverage and I had full coverage at the time and he said he has to beg to differ. He then explained that his client was injured which I was never made aware of this fact. Cannot fit all.