Vodafone India — charged 644 rs saying that called 51717 and talked for 46 mins

Address:

Jaipur, Rajasthan, 302021

I have been charged 644 saying that i called to 51717 and talked for 46 mins, which is in all the way unrealistic. First of all, with other telecom subscriber 51717 is invalid number by mistake also no one can dial 51717 making call is unrealistic, top of that talking for 46 mins is not at all possible.

Please oblige and do the needful.
Hope for best.