Priit isn't gone, but he's very hard to get a hold of. Usually you have to go through 2 intermediaries. I don't know the right person to talk to, but someone high up in the biller netops might.   Once you get the message to him, it'll take 4-8 weeks and multiple prods to get the IP actually changed in the firewall. I don't defend this, and I personally think it's unforgivable. It is, however, the reality of having one man in charge. It killed my zone for 6 weeks one time (this was many eons ago).