Need help with upcoming customer - Who's owning the license


I’ve got an upcoming project with a customer who wants me to help them to create ambient packs for LEDs in a minor hospital facility.

They want me to create loops of something like a beach with waves crashing, a fireplace etc.

My question is: Am I the one signing up for the subscription or are they supposed to have it? They’re the one to show the material and I’m the one editing it as a freelancer I can’t really find the info under the licensing page.

Is the item from Elements?