What's app doesn't recognize a contact in my phonebook I tried adding +, tried + with international access code plus country &amp; are codes, tried +with just the country &amp; area codes, tried refresh but still that particular contact doesn't appear.
First verify that the person actually has WhatsApp, because if they don't, it will not show up.

After you confirm the above, add the contact to your phone then open WhatsApp and press the green new chat icon on the bottom right. Now press on the three dots on the top right, and select 'refresh'

As long as you put in all area code info correctly and you did the above, it should show up.