Supersonic how to spend virtual currency?

Hi i know there will be someone here who are using Supersonic. I need help maybe you know the answer of my problem. How can i spend virtual currency/points? for example on Tapjoy they used
Tapjoy.spendCurrency(10, new TJSpendCurrencyListener() {
@Override
public void onSpendCurrencyResponse(String currencyName, int balance) {
Log.i(“Tapjoy”, currencyName + ": " + balance);
}

@Override
public void onSpendCurrencyResponseFailure(String error) {
	Log.i("Tapjoy", "spendCurrency error: " + error);
}

});

I already addressed this to their Support Team but they cannot help me. Support team are not good!