They don't.

The trend on Graalians is to leave out important information from why you were banned so you appear innocent.

As for OP, I can not say for certain why they were banned, but if Toonslab did not overturn it the ban was probably just. You don't just start off with a year ban either, you have to do something very serious several times to earn such a long sentence.

Normally I would mention the possibility of a linked account being the one banned, but Toonslab would have unlinked the accounts after the ticket, so that doesn't seem to be the case.