Although she had already mentioned it to Marek, Felixa cared much much more about getting chimaera scales than how they were obtained in the first place or who obtained them. Hell, if Harry Potter himself killed a chimaera, she would have been pleased to pay him handsomely for it and have him go on his way. That said, Felixa strongly doubted he cared to take a trip to Greece to kill a chimaera. And no chimaeras had been brought into Hogwarts, which she considered a pity. She far would have preferred he killed a chimaera than a basilisk. Then she would have cared whether or not he actually killed the creature.
Instead, she had found elements of those involved in black markets while looking for murderers. And whether it was done illegally or not - it wasn't illegal technically, as no one had killed one for longer than anyone in England would have made laws against it - Felixa wanted her chimaera. So she had eventually been contacted by someone who, she had been told, took more unusual and rare jobs. Her request was rare enough. She simply hoped he would be as good as she had heard.
They were meeting at a muggle place, not a pub. Lili was able to cope with them if she chose, but she preferred cleaner places where fewer men treated her as eye candy. That said, many did, and she had dressed for the occasion, she had also disguised herself in other ways, the most obvious being that her hair was blond. She appeared to be even shorter than she usually was, and her facial features had been modified some, but not enough that it was easy to tell magic had been used on them at all. And with that, she was there, on time, just waiting for her contact.