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"iCloud storage" ???  Adobe Lightroom has no connection or compatibility with iCloud (the Apple product).

With a reported 20GB of storage it suggests you have subscribed to the Photography Plan (20GB).

I suggest you contact Support to resolve your question.

Contact adobe support by clicking this link for the chat box,you need to be Signed In.

https://helpx.adobe.com/contact.html?rghtup=autoOpen

Are you sure that you've logged into the account for which you're paying $14.55?