Germany Visa Rejected Despite Complete Documents for Family Wedding

Hello, we applied for a Germany visa through iData for my parents and myself to attend my nephew’s wedding. We submitted all the required documents, including the wedding hall contract, without any errors. However, our visas were denied, with the reason stating that "false or misleading information" was provided. This is absolutely untrue, as we provided all the correct and genuine details related to the wedding. When we reached out to inquire about appealing, we were told that we do not have the right to appeal and must reapply, which would require us to pay the fees all over again. This denial feels unjust, and the reason makes no sense. I request a detailed explanation and a prompt resolution to this issue.