That can often become a slippery slope with any vendor very quickly; especially when they start foregoing testing to keep up with customer demand.
That was one of the main issues with Cantides, they would advertise a sale on T30 (for example), and when they started to run low would begin posting WTB's for T30 all over Reddit and Discord to fill customer orders. Then when customers received their orders, the cap colors often didn't match what was shown in test results that were posted on their website with the sale so there was really no way to know what was in those vials unless people went ahead and had their own testing done.