Lease car not on account

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Hello. My Polestar is a lease from a third party company, not through Polestar directly. This means the car is not showing on the website when I log in. I contacted Polestar and they say that because I'm leasing via a third party there's nothing they can do to add the car to my account.

I do have the car on my Polestar android app (signed in with my P*ID), so I can see the battery status etc there.

Is there anything I can do to add this HA integration? Possibly via the VIN? I mostly want to grab the SoC to set my smart charger.