Refunds will not generally be given for an active subscription period, but you may turn off subsequent auto-renewals in My Subscriptions. Any refund requests may be denied and an administration fee may be applied in any case where they are approved.
If your purchase was made through an app or App Store then refunds are reviewed by the platform of sale according to their own terms and conditions.
You can refer to their terms and conditions here https://pocketmags.com/terms-and-conditions to find out more, or alternatively, you can contact them at help@pocketmags.com for further information. Please provide them with your username and purchase receipt in correspondence.