Unhappy with service

I mistakenly took a car insurance with both Auto & General and Dial Direct, and since they are sister companies they found that out and they contacted me. Because I had paid Dial Direct till end of January, they told me, they'll cancel one, which is Dial Direct by end of January and we agreed that they won't deduct the R343.50, and they will only deduct by the 1st of February '25. But they deducted anyway on the 1st January and when I contacted them, I was told they'll discuss with their supervisor and get back to me, it's the 7th and I don't see my refund or a call from their supervisor.

Can I get my money back ASAP