Wrong Offer Loaded

<p>I bought a new phone that came with R500 free VC airtime. I was loaded with 1Gig data instead. This was after I called vodacom Satrudat night and was promised a request will be logged and I will receive a call with feedback on Monday. I called again on Monday as I never received a call or sms as advised by the consultant that I spoke to on Saturday evening. The consulotant that assisted me advised that they can't correct it as I received 1Gig data which I had "already used" as the system is designed to use the complimentary data first before data that I loaded. How is it my problem that the wrong offer was loaded and that Vodacom can't rectify their error? </p>