The endowment care fund under the provisions of this code shall be kept separate and apart from all other cemetery funds. Separate records and books shall be kept of the endowment care fund. The amount to be deposited in the endowment care fund shall be separately shown on the original purchase agreement and a copy delivered to the purchaser. In the sale of cemetery property, no commission shall be paid a broker or salesman on the amount deposited by the purchaser in the fund.