Rotten Dulux paint.

Had a very bad experience with DULUX. I bought a 5L PVA which was old and full of lumps. I then called customer care line which phoned me back once for the batch number and still waiting feedback more than a week later. I live far from the store I bought it from and now I have to travel all the way to return this product. Unacceptable , I bought Dulux as I thought it is a good brand.