Q: I purchased an upgrade to my icloud storage and want to cancel it now, how can I do that?

Hello divaht,

Thank you for the question.  If purchased your iCloud storage upgrade within the last 15 days, you can contact Apple for a full refund:

If you upgrade or renew your storage but no longer need it, you can cancel. If you cancel your storage plan within 15 days of an upgrade or within 45 days after a yearly payment, you can contact Apple for a full refund. After this period, you can downgrade your storage for the following year.

Note:   Partial refunds are available where required by law.

Find the full article here:

iCloud: Cancel your storage upgrade

http://support.apple.com/kb/PH12798

Thank you for using Apple Support Communities.

Best,

Sheila M.