IDFC Bank — Regarding Removal of duplicate vehicle from my fastag ID 34161FA820328EE802E2F4A0

Please refer to subject cited matter, My name is Gaurav Pundhir and My vehicle Number is HR07R9483 . I have idfc First Bank FASTag on my vehicle. But Sir I face problem from last 6 months while crossing on toll plaza, there scanner is showing Other vehicle number (HR16Q0591) on My fast tag ID 34161FA820328EE802E2F4A0, which is not my vehicle. Sir they are saying my ID is blacklisted and having insufficient balance. Sir I have Rs 926 balance in my fast tag.
So in view of above facts I request you to kindly update my vehicle number HR07R9483 against my fast tag ID 34161FA820328EE802E2F4A0 at the earliest and remove other vehicle number HR1600591 which is not my vehicle.

I have taken issue with customer care executive no one helps 6 months passed issue still not resolved