I just got my AT&T S7 Edge today and I was going to try registering for Samsung Pay so I could get the free wireless charger. However, when I get to the "Verification method" screen and click on "Use Fingerprint" I get an error message that says "Unknown error by ErrorCallback". Clicking OK brings me back to the Verification method screen. The other option on that page says "Skip and use Samsung Pay PIN". Clicking this does nothing at all. Has anyone run into this problem? Any ideas how I might get around this?