I bought airtel india calling card from mumbai international airport rs 500 having serial no 0612231200 and card no 4092858720 on14/06/2007 in the morning at 6 am with the intention of call back to india from uae at cheap price but moment i reach uae and tried to call after scratching on the back to find out card no and then call as per the procedure mentioned i was unable to call up .the message was dial correct card no. even after repeating the procedure four times i was not able to call.kindly look in to it. As it is just a waste of money also cant be in touch with india.