Vodafone — ISD call charge

Wrongly ISD calls charged by Vodafone idea service provider, one of the Post paid customer. ISD call charges bill continue send by Vodafone idea under fixed plan rs399/months taken through corporate office.
Without prior permission how Vodafone idea service provider activated ISD call.
VI not provide handset details which has to made alll ISD calls need imei number for tracking all ISD call.
Too much ISD call performed by this sim, since june21 without any ISD cal) alert.
ISD call Billing not sent months by months for immediate to take action to avoid continue from five months.