You know that ED received more than 2 million from the new eBTC, and this amount was not passed on to its true owners, I imagine that the holders of the private key of this address "0x8d12a197cb00d4747a1fe03395095ce2a5cc6819" is gradually pouring in to make some money, instead of distributing to its owners masters, this is just a guess and not a prosecution.
The one that had the old eBTC in ED during the swap, look for the ED exchange administrators and demand from them your new eBTCs and not from the eBTC developers.