Mandate charge cutting but my sign is correct

Sir i have purchege a lic policy and give cheque and fill mandate form my cheque is clear but mandate form reject. my both document sign are same . mandate form check parson my old sign see in her sestem ( computer) but i chenge year 2018 mandate sign are new my account show both sign he see only my old sign and reject my mandate form and debit rs 250 + 49 gst for mandate charge reject charge in my account but my sign are correct pls check my document and solve this pls check and solve to return this amounts in my a Bank account my account no 3105417390 i have complant home branch he accepted bank default and my old sign deleted but my cutting monoy problam not solve pls check and return my monoy