If bill not paid within 15 days notice of demand to issue.-

(1) If the sum , for which a bill is presented as aforesaid, is not paid and no objection has been prefer within 15 days from the presentation of the bill, the Commissioner may, serve upon the person to whom such bill has been presented a notice demand in the form prescribed by byelaws. (2) For every notice of demand a fee shall be charged at the rate specified in the byelaws and shall be payable by the said person, and the fee shall be included in the costs of recovery.