Vodafone Bill charged for d2c_mgossip_pack49

I am a Vodafone Postpaid Customer in Delhi using 3G data plan.
Vodafone has charged me RS 49/- including in bill for downloading d2c_mgossip_pack49, a stuff which I had never downloaded. When I called their Customer Forum for explanation, they had no proper explanation. My contact no. is +917838262186
I saw lot of complaints regarding this. I hope Vodafone is looking at Root cause & addressing it.