wrong debit date

The money that sabc tv licenses is making me pay doesn't decrease. I asked them about it then they told me topay via debit order. On the 22 of May 2015 the call center agent took my banking details to make a debit order application. Upon confirming she send the 1st debit will run on the 31s of June since the one's for May have already been sent. I was even happy about it knowing that I won't have money on the 31st of May. The next thing she calls me again on the 30th of May Friday telling me that the debit order will run on the 1st of June. I told her thats impossible she's bridging the contract and there won't be anything in my account. She told me that I should atleast pay R50 then she will cancel it. Later that evening I paid R50 via Absa atm cash deposit and today I just realized that I've been debited, leaving a Minus in my account after I told them about it thats why I even made it by all means to deposit the money.<br> I'm very angry and disappointed by such service