What is the cost to send an sms from germany with vodaphone?

Hi My daughter is on a mobile phone plan in Germany with Vodafone D2 (I don't know exactly which plan). I cannot seem to find out how much it would cost for her to sms me here in Australia. Could some one tell me the sms cost and/or call costs as well. Or direct me to a website (in English) where these costs are outlined. Thanks