Bad service and false advertising

So there's currently a promotion happening for Vodacom consumers are being advised to recharge with R25 or more and they can get to choose whichever bonus they want in this scenario my mom chose to receive 300 minutes so she recharged with R29 airtime on Thursday the 29th of the 8th month mind you it's her second time doing this so I'm quite sure she was clued up on what she's doing so the bonus airtime did not load she called the call center and spoke a consultant she felt didn't understand her query she was referred to the Team leader Ndivhowo sorry if that's spelled incorrectly who advised there's a delay on their side but she will get an sms confirming that the bonus has loaded and he will check up on her which he hasn't done until my mother decided to call Vodacom again today she got through a consultant named Ntando who couldn't assist her accordingly we ended up speaking to a gentleman named Gerald I believe he's the manager or whatever the case is for starters he wasn't giving us room to explain our side of the story secondly he couldn't cater to my mother who clearly stated that she wasn't so good with English thirdly they deny having a team leader named Ndevhuwo fourthly they all seem to have a different understanding of the same product they working on cause they all seem to be singing a different tune when explaining how this really works.