hello. can someone please tell me how to check why i got banned?

i try to log in. it tells me to check my email. i check my email it tells me to contact player support. i contact player support and they dont respond. its been 3+ days now after i asked them why i got banned and they have no replied yet, which is strange usually its less than a day to answer a simple question. does anyone know whats going on with riot lately?