Damaged goods

I bought the contessa dinning room in January 2015 together with dresser,My goods were delivered after 2 weeks and not in good condition and incomplete . I laid a complaint at the store and I was promised that they will try to sort out the matter for me.After 3 weeks they came and deliver the dresser also not in good condition , I went back to the store to complain. A week later they came to exchange 2 chairs only ,when I ask about the sideboard and the dresser the answer was (they don't know) I went back to the store to complain, and the manager said he will make follow up. In March 2015 they then exchanged the dresser. On the 2nd week of April they came and collect the sideboard during our absence finding our daughter at home and there was no replacement till today. I went back to the store and inform the manager,and the anwer was they don't have a stock. I am tired of this company because they are taking me from pillar to post. Please I need help.