Hello my name is ***** ***** I will help you.
1) Eurydice - if you are not showing images or music then this is fine.
2) if you are using some words then you also need to include a copyright credit, crediting the works. But as you have rightly done contactsd the company. They need to give you permission. That's because you are not only just one sentence, but quite a few words.
As long as you get permission there is no issue.
Can I clairfy anything for you about this today please?