If I remember correctly, rankings for opening server events refresh every 5 hours. Do you have any proof that you were in the TOP 10 ?

I'm sorry but if we don't have any proof that you were in the TOP 10 or any proof of this "bug", we can't do anything about it. But I can try and report it for you, fill this report please :

Platform (Browser/Facebook/Client) :
Server ID :
Character Name :
UID (If you are using Facebook account, you can find your UID on the bottom of the page. For players with OAS account : go to your profile - "change nickname") :
Bug Description :
Screenshot :
Operation System :
Resolution :
Your computer time-zone/Country :
Are you using VPN or not ? :

Mmm .. not really. I don't think it will help but we can try. Just fill the report form.