In vodafone no one ever notices that whenever you call there time clock accelerates excessively during calls if you make call for 4 seconds it will show you that u have called for 14 or 16 seconds. So on they deducts charges for 15 seconds instead of 4 seconds there time clock runs faster than usual time . So you will have to pay more than the usual charges they show and it is this that no one notices it during tha calls there are million of users of vodafone and the company is earning like this.
Networks of vodafone is good but whenever you use there internet is doesnot works properly there connection usually brokes.