The tax collector of each county within the Yazoo-Mississippi Delta Levee District shall make reports in writing, verified by affidavit, on the first day of each month, or within twenty (20) days thereafter, to the auditor of public accounts and to the treasurer of the board of levee commissioners for the Yazoo-Mississippi Delta of all taxes collected by him during the preceding month for taxes due said board of levee commissioners for the Yazoo-Mississippi Delta, for levee taxes, and if he has collected none, the report shall be made out and state that fact. He shall, at or within the same time, pay over all taxes so collected by him to the treasurer of the said board of levee commissioners. His final report and settlement with the auditor of public accounts and with the treasurer of said board of levee commissioners for the Yazoo-Mississippi Delta for the taxes of any fiscal year so collected by him for said board of levee commissioners shall be made on or within twenty (20) days after the first day of September of the same year. If any such tax collector shall fail to make any report as hereinbefore provided for, or to pay over any taxes as above mentioned and required, he and the sureties on his bond as levee tax collector shall be liable for and shall pay damages at the rate of thirty per centum (30%) per annum thereon and interest on the aggregate amount of principal and damages so due as aforesaid at the rate of six per centum (6%) per annum from the date when such taxes should have been reported and paid over as above herein provided. The said auditor and the said treasurer shall not omit in any case to charge the damage above provided for the collector, when incurred, but the same may be remitted on the certificate of the governor and attorney general, that they are satisfied that the delay has not been wilful, or unavoidable by the collector.