Hello there, LettaH.
It sounds like you are just trying to create an iCloud account to setup a new iPhone a few typos were made and the account wasn't created correctly. It would seem you would just want to get the iCloud account setup correctly so that then you can setup the iPhone with the right account information.
If you just want to add her iCloud account to the phone as it is currently, then make sure you've signed out of the iCloud account per the information found in this Knowledge Base article:
Sign in with a different Apple ID on your iPhone, iPad, or iPod touch
Once signed out, proceed to step 2 in this article:
Set up iCloud on all your devices - iOS
When you turn on a new iOS device or after you’ve completed the update to the latest version of iOS, follow the instructions in the setup assistant to activate your device and set up iCloud.1
If you skipped the setup process, tap the Settings icon on the Home screen, select iCloud, then enter your Apple ID.
Want to use a different Apple ID for iTunes?
Learn more
With iCloud, you can get an iCloud.com email account that’s ad-free, is up to date everywhere you check it, and includes webmail at iCloud.com. Just turn on Mail in iCloud settings and follow the onscreen instructions.
If you just want the phone to be restored to factory settings or as new, so that you can begin the setup process again, then this article provides the steps to follow:
How to erase your iOS device and then set it up as a new device or restore it from backups
Erasing all content and settings will delete all of the data from your device, including songs, videos, contacts, photos, calendar information, and anything else. All device settings are restored to their factory condition.
To remove all settings and information from your device, tap Settings > General > Reset > Erase All Content and Settings.
If you can't erase your device, restore the device using iTunes.
After your device is erased, you should see the following screen:
Follow the steps to complete the setup assistant. When prompted, select "Set Up as New iPhone." Then tap Next.
Then proceed with the previous article on how to setup the phone again.
Let us know how that works out for you.
Thanks for reaching out to Apple Support Communities.
Cheers.
