I deleted one of my exchange activesync accounts and can't see most of my contacts. How do I retrieve them? Unfortunately I can't reset the old account.
Have you ever made a backup of your phone?
There is a couple of programs you can use if you don't sync your phone with the cloud or google you can put smart switch or kies on your computer and back everything up on there
no problem if you're contacts are in gmail.
export csv file to exchange, where you'll import said file.