What champions can you be banned for; by playing them as support?

This is an actual serious; non troll post. I was informed if you choose a champion that doesn't fit the current meta you can be banned (Support Team has actually confirmed this). As a Brand support main; I'm wondering how this works. I manage to get S grade almost every game, and do very well for my team. Yet I'm finding people calling me a "Troll"/reporting me for choosing that champion as it's non traditional. It's very viable to bring a burst mage bot lane (Annie/Brand/Zyra) for kill lanes - I'm wondering how that translates to other champions. I see a lot of break the meta videos and they show insane combinations that actually work. Question is - is there a list of champions your allowed to play support? I'd hate to be punished for trying something new in normals.
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