why google admob account wasn't approved?

 Your account information is incomplete or incorrect. Make sure that you have entered your full name, address, phone number, and tax information correctly. You can also check your account settings to make sure that your country is supported by AdMob. Your app is not ready to be monetized. Your app must be published and listed in a supported store before it can be reviewed by AdMob. You also need to make sure that your app is set up correctly in AdMob and linked to a supported store.