GCN plus subscription through Apple ID not yet refunded

GCN+ service was terminated on December 19th of 2023. I had re-subscribed in October of 2023. GCN+ said I would be refunded for the portion of the year (almost 11 months) that was no longer provided due to terminating the service. I asked GCN today (1/1/24) where my refund was and they said since the subscription had been managed through Apple ID that I should ask Apple. So I’m asking Apple, where is my refund for the service that was terminated?