I wanted to sync my contacts to Google Sync (as Sony Ericsson has shut down theirs and moved to Google sync) but its only saying 3/3 contacts synced. But I have a load more than 3 contacts

Anyone know what the problem is?

If you sign in to http://google.com/contacts on your computer, I'd check to see which categories your contacts are in on the left hand side.

Some phones might only sync from some categories.

I don't have any categories, they are just in the phonebook...

Is your phone Android?

You may only have three contacts stored as "Google contacts" the others that are stored on your phone need to be tagged/moved/migrated to become Google contacts for Google to be able to sync them.

I think...

Check the phone book options within your phone. You may have the ability to export from phone/import to Google and then sync