In short: The counter stopped at ‘222/666’ while playing in T3. I never got anything like ‘Accept reward’ or similar, only the ‘ok’ button. If I press it nothing happens. Then I played T2 for several hours today. Plenty of kills of ships marked with a Pumpkin. Even one kill ‘Captain kills Captain’ while I was Captain. No points at all, the counter still is at '222/666`.
It’s much less to get the now so you should be able to grind through t4-5 in a day or so if you do nonstop PvP. And you also get the rewards from playing PvP on top of it, so win win regardless. ^^;