(a) The county may recover payment or reimbursement, as the case may be, from each person who has received legal assistance or another benefit under this article:

(1) To which he was not entitled;

(2) With respect to which he was not an indigent person when he received it; or

(3) With respect to which he has failed to make payment or reimbursement ordered under subsection (c) of Code Section 17-12-10 and for which he refuses to pay or reimburse.

(b) An action must be brought within four years after the date on which the aid was received.

(c) The county may recover payment or reimbursement, as the case may be, from each person, other than a person covered by subsection (a) of this Code section, who has received legal assistance under this article and who, on the date on which the action is brought, is financially able but refuses to pay or reimburse the county for the assistance according to the standards of ability to pay applicable under this article. The action must be brought within four years after the date on which the benefit was received.