That would be YOU sugar pie…
No, instead you heat it and let it cool, and come up with the theory that they sent you a different cannabinoid.
You even have the confidence to call that process “testing”…and apparently have no idea what “indefinitely” means.
Uh huh…can you define what you actually learned from those “tests”?
Per @Thetetraguy: chances are they sent you thca as requested
Just not as pure as you were hoping for…and there are several ways of determining that.
Eg: quick solvent based testing of isolate for fats/waxes.
Alkaline beam test for CBD
And Bromocresol green to confirm decarb
… and learning TLC so you weren’t simply making wild assumptions, would up your game.