I have been messing around with this for a week, and I cannot get it to work. I have downloaded the TopGuest app to my iPhone, there are links to "Add your account number", I click on the HHonors link, put in my account number, but there is no way to save the account number. No 'done' button, no 'save' button, nothing. The only option is to go back to the prior screen without saving your account number. What am I doing wrong? Anybody else having this problem?