Unauthorised Debit Orders and NO ONE TO HELP

For two weeks i have been waiting for this wonderfully disgusting company to refund a transaction on my account having not authorized a debit order as i have never had this on my credit card since ive opened it! I have been 2 weeks late with my rent because one person decided to just take money out my account without even consulting me about this first! One person refers me to the next and i have been retrenched above this just taking my rental money having my landlord wanting to lay a complaint against me and our rental agreement! Im appauled that they quick to deduct money off my account and no one is able to resolve it in over two weeks cannot call even cause the lines just die its beyond frustrating! Once again all od this without my CONSENT!!!!! Hate this bank more and more!!!