VODACOM IS DRAINING ME

Once Again Vodacom my issue is with Vodacom. I personally bought my son's 1Gig whatsapp bundle through the Vodacom App on 1 August 2019. No messages can be send or are being received on his phone. He is using a Huawei. On 6 August 2019 I phoned Vodacom only to be informed that they will pay back the R29 which the whatsapp bundle cost but that we must to pay a bundle immediate as the network is giving problems and that we must wait 3-7 days before buying the bundle. They did credit the money to the phone but he can still not receive or send any messages, not even using normal data. The agent I spoke to could not tell me what the problem was or when it would be resolved. We will be expected to pay our normal account but its been 12 days and we can not use the service. No what am I going to be credit for not being able to use Vodacom?????????????