Due to the hjacking of the old RebirthRO server, RevivalRO lost basically all of its user data (Information can be found here and here). Luckily tho, account information's and donor levels of those accounts could be saved (characters and storage's however are still wiped).
It's very Important for us to compensation our old donors, they were loyal to us, invested in our server and helped it to stay alive for over 13 years! And so for this all of our old donors are qualified to a credits per donor level compensation, the points will be returned as Limited Premium Points.
To claim your compensation, just visit the RevivalRO Website and follow the instruction there.
The amount of compensation depends on your donor_levels prior in RebirthRO.