My brother invites my parents to visit him in Canada.His date of birth is July 1980 and mine is 1982.but it was mistaken by school 1981 ( 7 months difference only)no one noticed until he first came to Canada in 2008.and in the additional family information for siblings our representative put mine wrong (not sure which year).and I came to Canada in 2012 as a PR and I put my siblings information his DOB 1980 the right one.Now my parents need to fill their IMM 5645 and they don't know if they put mine 1982 then my brother is 1981 I am scared can they cross check all the information or not.does it have any effect on our PR.Does it count as a misrepresentation of information. Please help