I don't think BE is actually incompetent because they get their juice from China so they aren't directly responsible for how it gets made.
Don't count on that.
None of the large Chinese e-juice company will produce e-juice at this level. Dekang will laugh at you, the liability is not worth them loosing business over. You will also notice that none of the Chinese sites even offer this strength retail or wholesale.
High strength stuff in most cases comes from imported nicotine from one of the few companies in China that will do that, and mixed in house, often referred to as bathtub brew, covered up by "Made in USA".
As you will notice they are not passing the blame back at a supplier.. It was Dekang's fault not ours.. Well when you mix it yourself there is only one person to blame.
Trust me, the situation get more scary the more you look into it.