Bad service

My 47 inch Sony Plasma TV that I bought from ok furniture went for a repair on the 28 Nov 15, they told me that the TV is still under warranty and it is insured, so they will be able to fix it and it will be ready in 2 weeks time and I have been with out TV ever since and when I speak to the manager he is telling me different story every time which is so unfair of him. Cause now my kids do not have a TV. I am so furious at this furniture shop and it so disappointing cause I have bought all my furniture from them but their service Is very bad.