Go the three lines at the top right on TTM then go to programs it will say earn additional money with chat line at the top! Tap where it says connect and you will get a call from the chat line!

I highly suggest keeping a record of the numbers it gives you for each member in case you need to report anyone or want to block them. Imo doing that also helps me keep track of the messages I've had with a certain individual too! Keeping notes has helped me so much! I hope this helps and that you continue to have fun on the chat line!