Deliver what we pay for

On the 1st of January 2025 I purchased Powerpack 30-Days voice for R99. I was to receive 40 minutes everyday for 30 days. I received it on that day of purchase and never again. Calling vodacom is a nightmare as we are left to communicate with a machine. On 9 January I visited Vodacom in Centurion mall. I was given a reference number after the call was logged. On 13 January I received a message saying "sorry, the request was routed to the wrong department". I was given a number to call. It was a nightmare being transferred from one to another and having to explain everything again and again. I even asked the lady why she can't pick my issue from online as I had provided the reference number. When all was done she promised to call back. I'm still waiting, my R99 is gone. Going to Vodacom and making those calls takes more than R99 from me. What should one do really?