my no is 9849206446, , , i had demo sim card.i got a message that "by activating hellotunes u can get a commision of 10 rs".how to activate hellotunes by demo card...and i got another message "by song changing to any customer u can get airtel free minutes"i changed the songs for these numbers 9849641230, 9849974418 but i did no get any free minutes...and customer care is not working for my demo sim...contact me at 5pm or mail me at [email protected] read full review »