How to limit calls to external gift card providers

Hey everyone, I have an API that serves as an external gift card provider for a company that uses VTEX as their ecommerce platform. I guided the company to follow these steps:

  1. Register my external provider using this endpoint: GiftCard Hub API
  2. Register the gift card provider through the admin panel (under Settings > Payments > Providers)
  3. Create a new payment method of the voucher type and associate it with the provider created in step 2.

This process worked, and my API started receiving requests from the store. The thing is: the company was already using VTEX’s native gift card for purchases on the website, and the intention is to use my gift card for purchases through the app. So the company has two voucher-type payment methods registered, each associated with a channel (web/mobile) and its respective provider.

The problem is that my API is receiving calls from both channels. Channel differentiation seems to happen only at the payment method/provider level, not at the external provider level. Is there any way to “associate” my external provider with just one payment method/provider?