Bad service

Im so disappointed have been trying to get a refund ever since I bought a sink in June , they managed to finally take the sink back and now I'm still waiting on my refund , I'm calling them each day and none of them are bothered , what type of service is this,if i don't call they just don't care about their customers , I've been communicating with Winnie ,Kelsey and today with Ntombi all of them they tell me stories and to be patient