I would recommend a title report (about $100) and maybe an abstract of title to show the progress of how title items have been attached to the property. If the title report or abstract can show that a lien was placed on the property erroneously, you can then show it to Chase and resolve it there.
If Chase doesn’t want to resolve it, you may have to talk to an attorney to have him work on it.
As always, face to face contact is best but if you have the documentation, lay it out for them clearly, they may back down. If they did enter a lien erroneously, you could bring a suit against them for “slander of title.”