Unauthorized debit order and no answers

I've received a direct debit order on my bank account from Discovery Life on 1 September while I pay Discovery via my employer. I've contacted Discovery customer service on 2 September and all I received was an auto-reply with query reference -MailRef#***#-. No further replies from Discovery whatsoever. I have to now pay my bank for debit order reversal which is also done on best effort basis and stop any apparent future unauthorized debits from this merchant. These people are real *********. <div><br></div><div><em>(Supplier name changed from Discovery Life to Discovery Health by Hellopeter.com)</em></div>