Returned Microwave for repairs

I have returned my Samsung 32L oven silver microwave for repairs at Bradlows Carnival Mall East Rand, as it is still under warranty. To date nothing has been done, it is now almost 4 weeks with no valid respond from them, I call every send day to found out why is it taking so long, I have been told it was taken to Samsung in Durban Warehouse to be checked, how can one be without a microwave for a month, I am constantly using a stove, my electricity bill is being affected, my airtime. will never recommend any of my friends and family to buy at Bradlows, we have bought stuff worth R23 000 and they cannot even manage to fix a simple microwave, what will happen if something goes wrong with the fridge, TV and the other stuff we have bought from them, I am really guttered and highly disappointed with their service!!