App subscription refund possible?

I have bought a subscription to you tube premium through iTunes, and then cancelled it, because I wanted to switch to a student plan. After cancelling it and i still had it active until the end of February. After subscribing to a student plan hoping that a new subscription will continue from the end of february, but It renewed from today. Now I kinda lost the subscription I paid the full price for through AppStore. So, I wanted to ask whether refund is possible.

Thank you and I am looking forward to your reply.

Kind regards,

Aru

[Re-Titled by Moderator]