Help needed (Patreon)

So, got massages that I could get my account banned because the 3 Tier is offering to join a raffle and raffels are not alowed here on patreon, which makes no sense to me. So maybe you guys have an idea what I should do (maybe just calling it something different would be enought). I hope you have some good ideas. :)

Edit:

Maybe getting a drawing one by one? So Patreon A is getting to choose a motive for a fullcolored drawing with background in September, Patreon B is getting this in October, Patreon C in November and so on. Do you think this would be allowed here?

But I am open for more ideas! :)