Email actually might stand a chance to work.. for one if its a bug they will respond. If it isnt they may very well at least tell you your blocked. It never hurts to ask.
Sadly the way federations play out are often a dick move.. I did kinda try to warn you with all the reports coming in there might be consequences... not from me, but from others. In fact the server got off lucky if they blocked just you and not our whole instance. But since you didnt break any instance rules I was willing to take that risk on an instance level.