Makro online bad service

I bought a car head unit online and it was scheduled for delivery, 3 days later still nothing. so i decided to collect from the Capegate store. All good and well but 1 week later and my courier fees still have not been refunded, I've sent 3 emails and up until now I still have not had any responses as to what is happening wrt my refund. I was told it takes 2 days to process so I should have it by latest Wednesday morning, today is Friday and still nothing. Really disappointed