STANDARD BANK *****

My standard bank account has been debited with a random amount just under R100 and the description is ‘ASB Premium’. Upon googling this ‘ASB Premium’ I find various posts from people with Standard bank bank accounts reporting these random debits from their accounts from a company with the description ‘ASB Premium’. THIS IS *****! STANDARD BANK IS CLEARLY COMMITTING *****! Where does this company get my details and how is it that a debit order can just come off my account with no authorization from me?! Absolute *******! Who can we trust anymore?!