Don't buy a Samsung dishwasher

We bought a Samsung dishwasher about 4 years ago (for 1 of those years we weren't staying in our house and didn't use it, so it is basically 3 years old). We have had the same major error with it twice in this time, where it stops working and needs a part replaced. The first time was under warranty so Samsung covered the cost, but now it has happened again, and it will cost R2300 to replace. I believe we have been sold a defective product but Samsung is not interested in helping us because it is out of warranty. I complained to the customer service center, saying we are now going to dump their product and will never buy another Samsung home appliance, but losing a client for life doesn't bother a big corporate.