Credit Card ***** - No Response

I saw that an transaction went through on my Nedbank Credit card for $46 without my consent and no response from Nedbank to query such a large amount. I filled in the dispute form for credit cards, and had sent it to the Nedbank consultant as instructed. It has been more than a week since then, and I have not received any feedback and the money has not been refunded to me. The credit card has been cancelled, and I received a new one, but the money is still outstanding and I would appreciate any feedback.