NO FEEDBACK REGARDING CREDIT CARD DISPUTE

On the 24th of January 2015 I was incorrectly charged twice on my credit card for the same purchase at a retailer. On the 26th of Jan I logged an online query in this regard to the Premier Banking team. ON the 27th of January I was asked by Busisiwe Cindi to complete a Credit Card Dispute form and to email it back, which I've done on the same day (sent with supporting documentation). Then I received NO FURTHER COMMUNICATION from Premier or the Credit Card division. I logged another query on the 4th of Feb, and a complaint on the 10th of Feb. On the 12th of Feb I was FINALLY asked by the Premier team to forward the Credit Card dispute form to them so that they can follow up with the applicable department. AND GUESS WHAT, TODAY IS THE 16TH OF FEB AND STILL NO FEEDBACK WHATSOEVER. No communication about turnaround times, nothing, nothing, nothing. Terrible service. It's now been more than 3 weeks since I've been incorrectly charged twice. Will this ever be sorted or will I ever receive any communication? My money is on 'NO'.