At home not fit for any home

I have kitted out my house with furniture from this store thinking that it was somewhat better quality, Everything that I have purchased has issues or has broken from moderate usage. Although these items are out of warranty it is disgusting that prices are so high and quality average. The item in question now is an office chair, it is highly squeaky and it keep self adjusting the height. I think all these guys buy from the same shop in China. Whats worse is the service I tried to call a few stores and cannot even get to speak to a manager and the general sales staff have informed me that they are un-equiped to assist. Tried to track down Michelle one of their regional managers but she seems to be a ghost. Perhaps staff are running as they are too many customer complaints?