The Department shall be entitled to the return of and may recover from a non-TANF client any offset monies which have been distributed to the client but which he or she is not entitled to retain. If such client fails to comply with a demand in writing by the Department for the return of this overpayment, the Department may proceed by set-off and/or by court action to recover the amount of such monies from the client.
10- 144 C.M.R. ch. 351, § 16-11