Problem with Submitting Video Avatar Creation Request through API

I have been trying to use this endpoint: https://api.heygen.com/v2/video_avatar to create a request to create an avatar clone. Looking through the FAQs, someone asked a similar thing a year ago and they were told this

Unfortunately, Instant Avatars cannot be created directly through the API. The process for producing an Instant Avatar involves creating a consent video, and it requires approval. Due to these requirements, the production of Instant Avatars is limited to our web interface, and it is not possible to generate them via API.

Seeing as you have documentation a year later through, maybe you are able to create the clone now? If so, this is my situation.

I have followed the information on this doc: https://docs.heygen.com/reference/submit-video-avatar-creation-request

I have an enterprise plan as well as an enterprise api plan (assuming this as when I am on Settings/Subscriptions & API I can see the word Enterprise and the number of tokens I have left). I am passing the 3 required parameters over in the body of the api and I have my x-api-key in the header as well as my application/json headers. I have rerolled and updated my api key.

Still though, I am getting a 403 forbidden error.

Any help wouldd be greatly appreciated.