iCloud

I have 6gb free on iCloud

Check -> Go to -> Settings -> your name -> iCloud -> if you see 50 GB (or 200 GB ot 2 TB) then you have an iCloud subscription.

If you have an iCloud subscription, you will receive a monthly bill from Apple, check your email box.

You pay monthly for iCloud storage.

See the following Apple articles:

Manage your iCloud storage

Manage your iCloud storage - Apple Support

How to use iCloud on iPhone

How to use iCloud on iPhone – Apple Support (UK)

Get help with iCloud Photos

Get help with iCloud Photos - Apple Support

Set up and use iCloud Photos

Set up and use iCloud Photos - Apple Support (IN)

Access and view iCloud Photos on your iPhone, iPad or iPod touch

Access and view iCloud Photos on your iPhone, iPad or iPod touch – Apple Support (UK)

Thanks for your feedback & you're welcome.