Refund

I had 2 contracts with cell c ,so around January 2024 I realized that when ever I transfer money to my bidvest account the deduct R100 until I logged a complaint. They requested for bank statements to verify if the query it's valid. I've been given lot of cases numbers until today I requested to speak to the manager. When I asked about my refund they been saying it's still running until today. For the past almost 3 months. Pls assist