WRONG HANDICAP - CANNOT ADD FAVORITE PLAYERS – GHIN Review

I have players in my group that they handicap is 15 when they look on their app but when other player do a lookup it shows as 9 - for the player. Another example is a player that has twice their names but with different handicap. We play serious golf and money is part. What is the real handicap? On more issue: I search for a player and try to add to my favorites but the app does not allow me to do it. Please help !!!
Review by Mivanows on GHIN.