How much is skype texting?

If you send a text message to a friend in China, it is 0.09 Euro. You can make a phone call every 400 minutes, and you can't use it to send text messages. If you only charge the subscription fee, skype credit will not be displayed, or do you need to add the cost of sending SMS at the price of 0.0 Euro to display credit and you can send SMS with credit?