Hi thanks for the response ..so is there anything i can do

I was involved in a non fault accident one call insurance put me on to a company to give me a hire car and reclaim everything from the 3rd party . i had a hire car for 8 weeks i tried to return but wasnt allowed .now after 9 months i have received a.letter saying they havent recovered costs from the third party and are using OCL solicitors to reclaim the debt by court action using my name . has anyone being in this situation . they are asking me to sign forms to authorise this . please help Thanks in advance