Without regard to the provisions of K.S.A. 9-1127b and 9-1127c , and amendments thereto, a state bank may invest in a bank service company that performs, and a bank service company may perform, the following services only for depository institutions:
(a) Check and deposit sorting and posting, computation and posting of interest and other credits and charges;
(b) preparation and mailing of checks, statements, notices and similar items; or
(c) any other clerical, bookkeeping, accounting, statistical or similar functions performed for a depository institution.