Don't try that excuse on them. As it sounds like a guilty person clutching at straws.
How could you possibly know? If someone approached you and asked you to place bets for their syndicate is just one way you could know.
If you bet the same way as a match fixer and then the match looks fixed, how could they possibly not think you may have known something is another way to look at it. (not saying you did bet like a match fixer, but it sounds like you might have if the account is locked)
And how does it matter if you are in Lithuania or Kyrgyzstan or New York? You saying that is what is not logical.
If you are innocent you will be very unlucky if not paid in the end. And coming up with tenuous arguments will go against your credibility more then help. Just sound like you expect to be paid, as any genuine bettor would, and stick with just asking them when it will happen each month is your best strategy. And maybe
ask their regulator to look into why it is taking so long, so WH know you are serious and not letting go of it as much as anything.