Not willing to help with a default lounge suite

I bought a new lounge suite from Lewis and after 4 months one of the couches broke. I reported it to Lewis and 7 weeks ago they picked it for for repairs. In the meantime i went to the store many times to get the matter resolved but mr. Lali did not want to help because he said he reported it to his manager Elias and can do nothing further. I asked him once to talk about the matter in his office but he said he don't have to get up for me because the customer is not always right and that he already told me that he reported the matter. I spoke to Elias the area manager several times but even he could not give answers as his manager was in meetings all the time. I also reported this to customer care ( ***) with Heilie but still after 7 weeks nothing happened. I agreed to buy another suite from them but they could not find the suite i wanted even though it was on their stock list. I also tried to report this matter to the consumer council but even their i could not find any help as no one answers their phones. I am disgusted with this poor service and hope this will wake someone up.