Tired of Vodacom's incompetence! Second complaint

I migrated my contract from a top-up contract to a Smart S during December 2014. It was explained to me that what ever airtime I still had left at midnight on 31 December 2014 would be lost. As I have been through contract migrations before, I knew how it worked. So, at 21h35 on 31 December 2014 I spent some of my remaining airtime on Facebook credits. I received the credits, but noticed that my airtime balance was NOT reduced by that amount. I immidiately phoned Vodacom customer care to inform them of this, as I did not want the amount reflecting on my, now open contract, later. I spoke to an lady, who's name I can no longer recall, who promised to phone me back the next time to confirm if everything is correct.She phoned back the next day and told me not to worry, that the amount hasn't been added to my January account and that it must have been deducted from the, now expired, airtime balance I still had.It is now March and the amount didn't reflect on my January account. It reflected on the FEBRUARY one!!!!! And the money has been deducted from my bank account already!!I phoned customer care twice on Friday, 27 February 2015 and was promised that someone would get back to m