As long as you were doing everything aboveboard, petition, then escalate it until someone provides you an actual response.

Buttmad bears spamming petitions is gonna happen, but as long as everything was 100% aboveboard and you can prove so, you should eventually get unbanned.

If you're getting a cut and paste response from some bottom tier GM who doesn't actually play the game nor has any experience with it, ofc they might not have a clue and might've hit the ban button without thinking.

Just keep asking for it to continue to be escalated until a senior GM looks at it. Be polite, don't rage, and don't make silly threats about the EULA or RL legal action.

They will ban all of your accounts simply because the rules on macro use is that all of your accounts are permabanned, it has nothing to do with whether they were involved or not.

For example, if you were botting and RMTing, they'd ban all of your chars, not just the ones you were botting and RMTing on.

If it's a mistake, don't worry, and keep petitioning/asking for it to be escalated. If you're 100% innocent then you shouldn't have anything to worry about.