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That would grant you a 64 level. You should also specify your Battletracker ID, i guess your account is the one shown here?

http://battletracker.com/playerstats/aao/822805/Marvin%5BCZ%5D/

About any higher level you've might have reached back in time:

Ideally if you played in any time between 2006 and 2011, you probably would have left a good amount of "footsteps" along the way. Back in early 2012 we still had some very consistent amount of Google cache data. There are still many web cache dedicated resources you can look after to rummage into. Of course the point is going after any possible username you've used, looking for pics, statistics, tracker records and so on (obviously, you're the more fitting one to know whether you used one or more accounts and which of them lasted longer, so to say).

Updated this BT with 81 until you get evidence of having more:
http://battletracker.com/playerstats/aao/822805/Marvin%5BCZ%5D/

And welcome back