I've got a nearly identical problem on my Galaxy S8. Only difference is I can't enter anything at all in the zip code field. And because I can't enter the zip code, I am not able to save any of the address information. I, too, am not in a hurry as I don't cruise until next summer, but I contacted Ocean Medallion via its Facebook page: https://www.facebook.com/OceanMedallion/ . Last Tuesday they told me this: "Our technical team has been running tests on the app for Android devices to pinpoint the issue you are experiencing. They suggested, if you haven’t done so already, to crash and reinstall the app. Otherwise, we will have a new app update in a couple of weeks that will be well worth the wait, if you don’t mind waiting." I've tried reinstalling a couple of times with no luck. I plan to try again once they update. If that doesn't work, I am ready to upgrade my phone in November; perhaps that will do the trick.