reimbursement

Apple owns subscriptions and transactions made on their platform.  I don't know if we have a way to directly reimburse for iOS transactions.

You could try contacting Adobe Support directly to see what help they can provide: 

Using a browser that allows popups and cookies, contact adobe support by clicking here, https://helpx.adobe.com/contact.html?rghtup=autoOpen
in the chat field (lower right), type AGENT

Otherwise, you might try contact Apple Support.  They are usually very helpful and may be able to issue a refund if you explain the situation.