I think when they only reply with K, it means they are busy and have no time to reply the email. It's not that they don't want to reply, but there are many things that are more important than replying to your email. It's not that they don't want to reply, but there are many things that are more important than replying to your email. Go to VPN Meraki New Orleans for best ideas. This is a very common thing in the Korean culture. People tend to reply all emails quickly because it's too troublesome for them to finish reading all emails from their friends and family members immediately.