I do not think that anybody can help you without lab testing.
Jelfa has a few lines and few printers, depending which one they use the print on vials might be different so you cannot really compare.
I have seen counterfeited boxes they looked like the real ones. Recently there was fake omnadren production busted in Poland you could not see the difference read and fake but they contained only a little test prop.
I think that the only option you have is to run the cycle and see what happens