When a statement of account has been rendered by a bank to a depositor accompanied by vouchers, if any, which are the basis for debit entries in such account, or the depositor's passbook has been written up by the bank showing the condition of the depositor's account and delivered to such depositor with like accompaniment of vouchers, if any, such account shall, after a period of six years from the date of its rendition, in the event no objection thereto has been theretofore made by the depositor, be deemed finally adjusted and settled and its correctness conclusively presumed and such depositor shall thereafter be barred from questioning the incorrectness of such account for any cause.
SDCL 51A-10-6