Non delivery on advertised deal

I recently upgraded my handset and was supposed to receive some vouchers as part of the deal (including Zando, Makro, Takealot, Sorbet and others). This was confirmed both my my online application, as well as with the consultant I spoke with to confirm the deal. I was meant to receive an sms regarding the redemption of these vouchers, but haven't heard anything yet. I have tried for 3 days to get more information on how to redeem my vouchers. The sales and upgrades department just don't answer the phone, the online help team tells me "it's not their department so they can't help me" and customer care has promised twice to phone me back but have not done so. It's unfortunate one has to go the Hello Peter route, but it seems the only way to get some sort of service delivery from Vodacom.