extremely bad service

i purchased a dinning table and 8 chairs from the gateway store. after delivery we noticed there was like indents in the glass and the chairs were completely unstable and shaky. i called the store, they came in to check it out and blamed it on my floors,saying that my floors were not leveled.. i then got my flooring guy to come in and check my floors(which was at a cost to me!) they then gave me a new set of chairs and replaced the glass.. One and half months went by and the cushions on the chairs started to cave in,where you could feel the springs piercing your bottom which made being seated extremely uncomfortable there is also sharp shards of wood underneath the chairs which bruise your hands while trying to pull You chair in. i immediately called the store the repair guys came out to me again.. they told me that the chairs are imported so they wont be able to repair the chair and they wont be able to replace the foam to a high density. i was then told that the stores will be getting new stock and i must wait my chairs will be replaced and i was told that i will be refunded if theres nothing that i like.. so months went by and i waited and was promised that i was the stores will be getting new stock.. now i have come to a point where i cant wait anymore and i visited the store on 2 occasions and they have nothing to my liking or that would match my table. so i told them i waited long enough and now they need to give me a refund as i need to find something thats to my satisfaction. they told me unfortunately they cant refund me as its been too long! yet it was not my fault they didnt have anything to my liking and they have been promising me on various occasions about these chairs.. i paid R999 per chair.. this is not Only an inconvenience of a very high price but completely unacceptable.