Disappointing Vodacom Canal Walk

Very disappointed in the company that I have been loyal to for so long. Bought a phone, took it in for repairs, I was told that nothing was wrong with it. Tried it out again and still had the same issues. Took it back and have not had any feedback from them for nearly 2 weeks, I have asked for my money back if I was not going to receive an exchange, phone is barely used, less than 6 months. Tried calling the store more than 20 times, no answer, emailed, no answer. Still waiting for my phone or my money back, it can't be legal to treat a customer this way with a defective product.