Please have the staff say something to the customers who are spending time on the machines on their phones instead of using the machines. I have been there on many occasions and am unable to use the machines becb

Just ask them how many sets they have left. Usually that lets them know someone is waiting so they hurry through their next sets. If they don't, ask to work in with them. Sharing equipment isn't weird, expecting only one person at a time to use the same equipment is weird.

Yes they have staff And you can ask about to using the machines , i hope your next time there enjoy your excersises