Don't expect these small-scale startup vendors (or new branding from existing little vendors) to provide accurate, honest, usable CoAs.
You either need to test yourself, group-test (which is challenging for unknown vendors) or maybe try to match up vial cap/band colors with real third-party CoAs from other vendors selling the same product/dosage around the same time. Especially if the kit labels are exactly the same, down to the font, spelling and spacing