No Feedback & Allowing Unauthorised Debit Orders

I have contacted ABSA through my online banking regarding an unauthorised debit order that was deducted off my bank account last month, November 2015, no feedback has been received to date.<br> <br> I now have a second debit order that has been deducted off my bank account without authorisation from myself, this was done 30 November 2015 from a company Show Time Finance that emailed me yesterday stating they are deducting money, showing authorisation as per a form showing yes tick marks without any signature, how does this give you any authorisation to deduct money off my account?<br> <br> I need urgent feed back on the return of these funds into my account as non of these companies have been authorised to deduct any funds off my account by me at any given time.<br> <br>