Hi,
If you paid twice and you see that money are on your balance, you can buy only 1 subscription. The remaining money will remain on the balance. You have to know that money cannot be returned back to your credit card or webmoney purse, only to the balance.
Even if you pay 3 times, money will stay on the balance, because you will purchase a subscription from it.
Generally speaking, all financial questions are sold via Moderator. If you need, you may send him e-mail.
regards