Swell Paypal Integration

[Raigeku]

I integrate Paypal Commerce via Swell integration, and I have a custom checkout page.
Now the catch is that even if I setup a shipping service, when paying via Paypal's modal the shipping service defaults to the first service. How can I set the shipping service inside the modal with the one chosen inside the cart object? (cart.shipping.service is already set before via await swell.cart.update({ shipping: { service: shippingService, }, });