If a tax bill is in error as to the square footage of the man­u­fac­tured home or as to the rate of tax, the own­er may file an affi­davit with the Coun­ty Trea­sur­er set­ting forth such error.  If the tax bill does not show the name of the cor­rect own­er, the per­son whose name appears as own­er on the bill may file an affi­davit with the Coun­ty Trea­sur­er so stat­ing the iden­ti­ty of the cor­rect own­er, if known.  Upon the fil­ing of an affi­davit as pro­vid­ed in this Sec­tion, the Coun­ty Trea­sur­er shall issue a cor­rect­ed bill and shall so indi­cate on his records.  (See 35 ILCS 515/7)