Not receiving internet bundle

On 1 April 2020, I bought 5 GB anytime internet bundle and 1 GB Whatsapp bundle. Instead I have been credited with twice of 1 GB Whatsapp bundle. I am unable to access the internet, due to not receiving the internet bundle. The self-services options, available from Vodacom and talk to Tobi, the computer, led me to unable to fix my problem with the internet bundle.