I purchased iCloud storage but the photos I backed up are gone I deleted the from my device supposedly after I moved to the icloud

Did you turn on iCloud Photos or did you use iCloud Backup to backup the photos? The photos that you can view at iCloud.com are photos synced via iCloud Photos. You cannot view contents of an iCloud Backup; you can only use the backup to do a full restore of a device or setup a new device. See: Restore your iPhone, iPad, or iPod touch from a backup - Apple Support

iCloud Photos is a syncing service. Any photo you delete from a device where iCloud Photos is turned on will also be deleted from iCloud and from any other device connected to iCloud Photos. You can potentially reduce the storage space required on a device by turning on Optimize Storage. See: Set up and use iCloud Photos - Apple Support

Apple does not currently offer cloud-only storage for photos. If that is what you want or need, you may want to explore 3rd party options such as Google Photos or Dropbox.

Another way that photos may be on iCloud (if you don’t have iCloud Photos turned on) is via a backup of an iOS device. The only thing you can do with a backup is use it to restore a device or set up a new device. The contents of backups are not viewable at iCloud.com and if you delete a photo from a device it will not be included in future backups and will be lost.

One thing to try for deleted photos is to check Recently Deleted -- see instructions in If you're missing photos or videos in the Photos app - Apple Support