I have tested the paint exactly as described and the result was not even close to acceptable. Then I have all the parts of the delivery properly packaged and stamped as an insured package (as required by the provider) returned.
Then I received a call in which I was informed that a refund of the amount was not possible because the paints were used. When asked as a test of the goods was otherwise possible is indeed confirmed to me that this would not otherwise, but that it nevertheless no money give back. I then mentioned that I would make this clear through a lawyer. Then it was on the other end of the line a bit more accessible. I was called a second time and then I was then "generously" mitt split that you, me on Amazon 15 - would credit of 34.95 (apart from the 6.90 postage for the return, which are as yet come on top .)
Conclusion: I never order again with this provider and will advise each of them.
The one star I had to dial up to any rate can .... so please be disregarded or considered as big minus.