Unable to get a refund for the yearly subscription after I forgot to cancel free trial

On February the 10th I stared a free trial and forgot to cancel on and on February the 17th I was charged the yearly subscription amount. I did not notice till the 18th and changed my subscription to their weekly option and was told I’d get a refund on the remainder.

Issue is I still do not have a refund, the option to get a refund for the yearly subscription is not an option at https://reportaproblem.apple.com, and since I changed to weekly my access to the app is only till the 25th of February. Is there anyone I can contact at this point?

[Re-Titled by Moderator]