Vodafone Balance Transfer Trick

Hiii frnds...This is a balance transfer trick for vodafone users..
Dial..
*131*amt*mobileno#

e.g:suppose u want to transfer Rs.30 to 919999999999
Dial *131*30*919999999999#

Voilaa..!! Your Balance has been transfered..

U can transfer only 5rs to 30rs to ur frnd..And he too must be a vodafone user...