Returns a link the user can visit to top up their balance.
This is typically used when a request is rejected due to insufficient funds.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Optional user identifier provided by the developer.
Can be used instead of the user property in the request body to associate the API call with a specific end user.
The unique identifier of the user to get top-up link for.
successful operation
The URL to redirect the user to for topping up their balance.