Please be aware in case of ISD (International) calls. These are those calls which come from a number which is not starting with 91. 91 is India Country Code. If you got a call from a number which is starting with 92, 93 or 99 then only by receiving this type of call your balance will be reduced. So, don't respond to those calls.
There is a way for BSNL users that they can call BSNL customer care on 1503 and report this problem if it happens to them. BSNL will try to resolve the problem with your balance and block that number to call you.
Be Aware be safe !!
There is a way for BSNL users that they can call BSNL customer care on 1503 and report this problem if it happens to them. BSNL will try to resolve the problem with your balance and block that number to call you.
Be Aware be safe !!