Shocking service

On 28 July I made a purchase at BW Rivonia. When I got home I saw the goods were parallel imports and the sales person had not alerted me to this at the time of sale ( as required by the Consumer protection Act). On 29 July I returned the goods, and my credit card was ostensibly credited. It is now almost 4 weeks later, and the credit is still not reflecting. The amount is R 1300.00, so not insignificant. Phoning is a waste of time, so I have sent 2 emails requesting the issue be dealt with. As of today all I have received is an email request to advise if I still require assistance!! It seems as I f I am going to have to return to the store, purely through gross incompetence of their employees. Why have an email channel of communication if it is manned by ***********s? So I must spend my time, and my petrol money to go back to a store that owes me money, to ask them to please process their payment to me. If I had owed them money for this length of time, I assume I would have had numerous requests and threats....