Welcome to the Developer Forums, but I must say that your issue is not something you should post in these forums.
These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding.
Since you've already contacted Chase and they say it's a known issue that they're working to fix, just wait for Chase to fix it!
Posting in here - to random developers around the world - won't get you any closer to having your app working again. We don't work for Chase, and we don't work for Apple.
I'm sorry you've got an issue with an app on your iPhone. but Apple cannot help you, and neither can us random developers. Chase know what the issue is, and they're going to fix it. Just be patient (and please don't use these forums for such posts in future).
Thanks.