I believe that you are making a mistake by dealing with DLA at all Julie. Unless they have purchased the debt from C&G then all they are going to do is act on their client's instructions.(posted 7894 days ago)Take a tip from me. Write to C&G direct. Point out to them that they are members of the CML and as such have agreed to abide by that organisations policy on chasing shortfall claims. Request that they desist from pursuing their claim against you or you will take the matter up with the FSA and your MP.
I'm assuming that you really have had no contact between the repossession and 1999. Also you neeed to check that the date that the house was sold is also outside the six year limit, working backwards from their first contact letter.
If you are certain about these points then the C&G should back down. Write to DLA and inform them that you are dealing with the matter direct with C&G and copy your letters to both parties.