I have all these amulets but I don't know where the mage is to turn these in. Same with the coins. Please help ;-;

The Mage can be found in Shadowglen - https://subeta.net/explore/mage.php

The coin machine can be found in Centropolis Lower West Side, or on the games page - https://subeta.net/explore/coinmachine.php

Thank you so much! It's been driving me batty trying to find them.