whatsapp not displaying contacts in alphabetical order In my phone i saved some contacts start with "1" as below

1 Alex
1 Joseph
1 karthik
1 Rajesh
Anderson [ without 1]


so in  whatsapp also those contacts are displayed first as above order. now i removed "1" from those names , so after "Alex", it should display "Anderson" in whatsapp now, but still whatspp displaying contacts in same above order.

I cleared cache from whatsapp, still same result, I dont want to reinstall, any other solutions ?
You can also try refreshing contacts in WhatsApp. From the main screen click on the new chat tab (green circle on the bottom) then open the menu and select "refresh"