i want to unsubscribe the ring tone service from du mobile sim card, my mobile number 0552492353. I always received sms that mesage cannot be display and ringtones that cannot open.This always eat my load balance once i have recharge my balance.Please stop sending any ringtones and messages.I already inform the customer service of du company and they told me to log on www.zedge.net. from that I did it now.Because its really a problem for me.