Great question, and yes this can definitely be changed! You will need to sign into your store admin and head to Online Stores > Themes, click the 3 dots nexts to the published theme (or practice on an unpublished theme) and choose to edit “Default Theme Content”.
This space allows you to alter any precreated text on your store that is baked into the theme file itself. For this one, use the search bar to search for “Need Help”. You should see it appear like in my screenshot below, but with the default text showing in the field.