quick question for the experts here

I normally only fly AF or KL, but it looks like I will be using China Eastern and Saudi on two upcoming flights.
Does anyone here have experience with whether the Ulti Travel Assitant can also help with other Skyteam airlines and any irregularities or cancellations that occur there? Or are they only responsible for AF and KL flights and you have to use the hotline of the respective airline?

by any chance an ulti here on a Skyteam but non AF/KL flight took advantage of TA support?