Sounds like you beat the old guard and they cried about it

It's actually why I quit magic

I was terrible but I beat a few of them with a couple lucky combos and they were so mad they complained until the owner as a long term friend of most of us Laughed them out of the store but it was so jarring because my deck was maybe $200 of mostly booster luck and a few choice cheap cards I needed And 40 y/os where crying because I got lucky and beat the deck they'd spent far too much money on

Hopefully they grow and you can continue to play the game as actually intended

No fuck up mate

You gave her an out of what's probably a shitty situation and now it cannot be ignored by authorities

You're a great dude, even more so for how bad you felt and how much MORE effort it appears you put in than the parents to help this girl

Keep being awesome