I'm still frustrated at the custom it six weeks no respond

"I'm appalled by the utter incompetence of Pick n Pay's customer service. Six weeks have passed, and I'm still waiting for a response. Every time I contact them, they promise to call back the next day, but it's all just empty words. This delay is not only infuriating but also causing me significant distress. Can anyone offer some advice on how to deal with such unprofessionalism?"