It's not at all a problem that the oceans divide. It depends on your definition. We're planning a 2500-copy print run. Well, you could try an international money order, but that's not necessarily easier.
Cheques also bring exchange hassles.
If you send cash or a cheque, of course we won't refuse it. I overpaid you for the competition, or I sent my entry late. If you overpaid, we'll just add it to your account. You can use the credit towards any future competitions you enter, or towards subscription. If your entry came late, we'll put it away for next year.