Fired Earth New Coat 20L there goes my money

I recently went into Builders Alberton New Market branch as they had a special on Fired Earth New Coat 20L White. I spoke to the Fired Earth salesman and asked if this was okay for a top coat. I did not know that this paint would need at least 4 coats to look somewhat decent but yet still has streaks after drying. I have painted one wall as I thought maybe it was my eyesight. Now I am literally sitting with 19 litres of paint that I have no idea what I am going to do with it. This paint is thin, drips everywhere, leaves streaks no matter how well I paint. Feels like I have been ****** out of my money. I have one wall painted white and will now have to try find a quality paint that can finish the job. Fired Earth should give clients back their money on this low quality stuff so we can go get a decent brand like Dulux etc.