Hi Velraj,
Thanks for coming back to us about this, I am sorry there isn't much wiggle room when it comes to this situation.
We used to be able to transfer responsibility a few years ago, but this has changed now due to new policies.
The only way forward would be to cancel the account that's in your Partner's name and have a new account set up in your name.
I have a link here which has more info on what to do next 👉 Change Account Holder - It has the number that you need to call in order to get this started.
Sorry that we can't help further.
Thanks,
Megan_L