In my opinion, the system of replenishing the balance is a bit inconvenient. If a user first buys graftcoins on the exchange, and then replenishes the balance with them, he will lose some means on commissions. It isnt cool.
Hello, you wont have to do it cause there will be Accept Broker in the system, which will allow you to replenish the balance using any convenient currency. This broker automatically converts user's currency to graftcoins after replenishment.