NO Delivery after I fully paid for my Order

I placed my order & paid in full via cash deposit on 5th of February 2016. Their policy: Delivery is estimated at 8 - 10 working days as long as there are no delays such as random custom checks etc.. As soon as we have your item in SA, we will send you a tracking number which you can view the status of your shipment with Dawn Wing Couriers. Since the 18th of February 2016 I emailed them asking for an update on the status of my order. I never got any response from them, I then contacted them via Facebook still no response till today. I sent numerous emails No feedback. I sent another email on the 19th of February 2016 requesting my Money back still no response till today. When I needed the information and how to go about making the purchase, the feedback was effective within minutes. They are still advertising on facebook and deleting negative comments regarding complaints about their No delivery No response to emails once they receive payment from customers. Since I commented on their facebookpage alerting other followers what happened after I purchased and fully paid for my order, I'm blocked from their page