Stay away from Plascon paints. Bad quality

I bought 4x 20 liter Plascon paint. Firstly the paint had a funny smell, dry paint particles and the paint was weak. I normally used Dulux paint when painting the house. I ended with this Plascon nonsense because at the shop they advised me to take the special. I know the coverage of a 20litre paint. This Plascon paint was so weak. It required 2x 20 liters in order for the colour to even up. I decided to lay a complaint directly with Plascon. STEVE WILSON responded and requested a sample. He came back with an insult telling me they checked the paint and nothing was found to be wrong with it. Leaving one conclusion that whatever I experienced with the paint is normal to them. I'm surprised that I'm not the only person that had this issue, looking other reviews. Yet they still don't see anything wrong with the paint.