Attention GM: Hacker?

Hello,

This is to the community and GM's looking for some help on this topic. There is a player in my server (HKT-2282) who came in after a few months with no prior involvement, V5 and spent over 2m dia in a few weeks. He claims a 'GM' compensated him. It has been ruining the server. Please shed some feedback on this - he makes V9 Players who have been playing for 3 more months than him look like newbies.

Btw, V5 - over 4B BR in under 4 weeks.