We will be taking preventative measures to fix this issue as quickly as possible. When this issue gets fixed, we will post a separate notice. We deeply apologize for any inconveniences that were caused towards your gameplay.
* Regarding the intermitent issue with non-received items/bundles after purchasing using Google Play. Please be advised that the refund will be processed in sequential order. If the refund is not reflected in your account after some time, please contact us through the Lineage 2:Revolutions Customer Center.
Source: https://forum.netmarble.com/lin2ws_en/view/4495423/801901