MY ACCOUNT HAS BEEN DEBITED FOR THE AMOUNT OF R350

MY ACCOUNT HAS BEEN DEBITED FOR THE AMOUNT OF R350.00 FROM HDL TRADING,I DONT UNDERSTAND HOW THESE PEOPLE GOT AHOLD OF MY DETAILS AND WHO GAVE THEM AUTHORISATION TO DO SO,ITS VERY ********* AND ABSOLOUTELY PATHETIC THAT PEOPLE LIKE THIS COMPANY ***** MONEY FROM US WHO WORK SO HARD TO EARN AN INCOME,PLEASE HELP ME OUT I NEED ADVICE ON WHICH STEPS THAT I NEED TO TAKE IN ORDER TO GET MY MONEY BACK IF NOT I WILL TAKE THIS COMPANY TO COURT AND HAVE THEM EXPOSED