How could it be bound to another account if you purchased it brand new and registered it with your DJI account? Or is there more to the story?
That's not possible.
NO They will not.
Then you have ownership of the DJI account and you can contact DJI. Once contacted DJI will send you a 3 digit number that will allow you to change the password of your account. That's it. DJI will do no more than that.
Was...