Double debited my account in Dec

My bank account was double debited and it reflects as reversed on my credit card statement. Went into Rosebank branch Johannesburg and the consultant helped me and lodged the complaint and since then I've been calling and the Marlon says they're still reconciling my account. He promised to call me back but never does. When I said I'm going to hello peter he's said I can do what I like. In the meantime I've been inconvenienced as the amount they double debited is R2210.00. I cannot believe it can take so long to investige and reconcile my account. I've been a customer of Nedbank for 17years and feel that this service is unacceptable. I'm upset by this consultants attitude. Where has this money gone?