Nothing to show for my money after 18 days.

Bought a music player on-line on 4 July. Was told that it can be collected at a locker within 14 working days. Received 2 calls after 10 days to check if I had received it. Meanwhile, on-line tracking showed "collected" - not by me! On 21 July I decided to visit Makro in Monitgue Gardens. The guy at the counter disappeared to "check the file". After 30 minutes he was still gone and I asked his female assistant for the manager. Was told manager not available but she spoke to a colleague and my product will be delivered within one day. Next day received another call asking if I received my product. Now 18 days since Makro took my money and no product in sight.