DLA Care Exporting and Competent State.

Without going into much detail, could the circumstances hereunder preclude one who was formally in receipt of dla care component till he notified of intention to move permanently to France and the subsequent move, from having the benefit reinstated? 
Could he be able to reapply if his condition remains thesame as hereunder? 

Client moved to France in July 2002.
His tax records is said to be checked for the tax years 1998/99, 1999/2002 and 200/01 and it was judged that he had not paid the correct level of National Insurance for those periods.
He is not a pensioner as he has not yet reached state retirement age.
He is not in receipt of a contributory sickness benefit under UK legislation and not insured for such a benefit.

Is it right that consequently the UK is not the competent sate for payment of sickness benefits for this client?

Thanks for any insight.