Black company. You knew first hand how they opperate. Go, no run!, and hide little girly!
She should have made a stance at this point. She should know about her value. She is soft hearted ans so might think, 'I do this this time, but I complain a bit and next time I won't do it.', but that is bound to fail. They will think, 'She's a pushover (true). She says she won't do it any more, but we know she'll do if we pressure her a bit. (We'll give her the feeling, she'll be disliked.)' An efficient strategy, as she is in a different world and relies on the good will of her "superiors". Also, now that the first knight order knows about those artefacts, the others will want them, too. This session won't be the last of them.
She should go on offence, "Enchanting is taxing! Don't you see, how I have to chuck down those MPs! This is unnatural and can't be good on the health. I know those enchantments may safe lives, but my potions DO safe them. It isn't me who leaked that information, but I have to do the clean up? Isn't it a bit sad, that knights rely on my help in combat, instead off honing their own skills? And by doing so robbing me of my own life force. Some knights!" The last part is only for the case, that those guys are really persistent.
Also demand a fair compensation (own blank crystals).