beware cheap gas appliances

I bought a defy gas stove from game in east london on a special for 2300. Took it back had a big fight with game they finally exchanged it for another. They would not refund the money as they claim. Took new stove home only to find same fault, contacted defy they say I must use a gas installer to install stove. Good buy special cause it now gonna cost a minimum 700 rand excluding material to install the stove. And on top of that there must be problems with this stove as game is now running an extra special of 1995 for same stove. Definitely will not buy a defy gas stove again.