Purchasing Add-Ons after your initial order
You can view and purchase additional Add-Ons for your song at any time from your Order Management Page. Just make sure you have confirmed your lyrics and selected your song, and you will see a section on your Order Management Page called "Your song add-ons".
So if you have already ordered your song and want to purchase the YouTube add-on or Digital Lyrics Artwork, for example, it's not too late!
Changing song length
Unfortunately, after you've placed your order, it isn't possible to change your song length.