[Resolved]  Vodafone — my 10 year old mobile number is registered on someone else's name.

I (Viresh kumar tomar) have been using my current mobile number ([protected]) since 2010, which i bought on my own id, and in 2014-15 when all smartphones started asking for nano sims i did a sim change as well for the same mobile number using my own id and address proof.

But today on 08 oct 2020 as i downloaded the vi app and entered my mobile
I've come to know that the mobile number that i've been using for the past 10 years is registered on some girl's name (Apurna) that i don't know and her address is of a location in delhi that i've never visited or had any connection to in my life.

Now how did the vodafone employees did this magic is beyond my understanding. So, to resolve this issue i contacted the ever so wonderful customer care of vodafone for the first time in my life and had the worst experience anyone can have, instead o[censored]nderstanding the issue all of those customer care executives were blaming me for the issue that the number is registered on the same name for which the id i've provided and all 3 of them disconnected the call.
Yes, i tried to make them understand the issue 3 times with all different executive and they were all rude and putting the fault on me for the same. Where is the customer care in that i still don't understand?

Now, 1. I want to know that if my number is registered on some else's name is there a possibility that someone is using a number that is registered on my name.
2. I want this number to be registered on my name and i don't wanna lose this number, because on of the customer care executive very rudely calamed that i won't be able to get the number registered on my name as in their records it's registered to someone else and i'll need their permision.

I can't even fathom, how i'm at a fault here and why i'll have to suffer for the mistake of vodafone executives not doing their jobs properly.