Q: How to change an incorrect spelled username to the icloud

Hi Don,

I understand that you need to change your Apple ID or iCloud account. As long as the email address does not end with an @mac.com, @me.com, or @icloud.com then you can update that information. 

To get you started, make sure to sign out of iCloud and other places that you are signed in with that Apple ID. Once you have that taken care of, you can go to My Apple ID, sign in and the follow the rest of the steps outline below. Once you have that done, you can sign back in with updated name and all should be good.

Change your Apple ID
https://support.apple.com/en-us/HT202667
 

Use these steps to reset your Apple ID:

1. Sign out of iCloud, the iTunes Store, App Store, FaceTime, Find My Friends, Find My iPhone, and iMessage on each device that uses your current Apple ID for these services.
2. Go to My Apple ID.
3. Select Manage your Apple ID and sign in. Forgot your password?
4. Select Edit next to Apple ID and Primary Email Address.
5. Enter the email address that you want to use as your Apple ID, then select Save Changes. Apple will send a verification email to that address.
6. Open the email from Apple, then click Verify Now. Didn't receive the email?
7. When the My Apple ID page opens, sign in with your new Apple ID email address and password. When you see a message that verification is complete, you can start using your updated Apple ID.
8. Update the features and services that you use with Apple ID, so that each one is using your updated Apple ID.

Have a good day