Unauthorised direct debit deductions

I SPOKE TO VERONICA FROM FEVERTREE - A FINANCING SCHEME OF SPEC-SAVERS ON THE 5 FEBRUARY 2016 ABOUT A PAYMENT ENQUIRY & MY GRIEVENCE AND SHE DID NOT GET BACK TO ME CONCERNING A RESOLUTION...ON THE 1ST FEBRUARY 2016 I GOT A COMPLETE BALANCE OF R1780 FROM THE CONSULTANT: Jolene Isaacs, WHICH WAS AN OVER-CHARGED AMOUNT.ACCORDING TO THE CONSULTANT: Jolene Isaacs, IT WAS SUPPOSE TO BE R1776.89 AND NOT R1780 AS I WAS TOLD. AND AS A GOOD PAYER I WENT TO GO PAY THE FULL OUTSTANDING AMOUNT OF R1780(ON THE 1ST BALANCE) AND FORWARDED PROOF OF PAYMENT TO [Email Removed] AND REQUESTED FOR DIRECT DEBITS TO STOP ON 1 FEBRUARY 2016. FEVERTREE ILEGALLY & ********LY DEDUCTED WITHOUT MY AUTHORIZATION R18 FROM MY BANK ACCOUNT ON THE 16 FEBRUARY 2016 WITH REF: SPEC CREDIT FEVERTREE 903431... I AM GOING TO TAKE THIS UP WITH THE CREDIT OMBUDSMAN & CONSULT MY ATTORNEYS. I WILL NOT TOLERATE THIS ABUSE. I REQUESTED VIA EMAIL FOR THE ACCOUNT TO BE CLOSED ASAP!