ESET Smart Security 5: Not activating

I did a search on the forums about my issue but I came up with nothing.

Just a hour ago, I bought a 2 year license for my Eset SmartSecurity 5..

Ok, I receive my Username and password and I input it into the Product Activation window.. And after I click activate..It does not activate, after waiting for 10 minutes.. Even Clicked update and waited another 10 minutes, but it is still not recognizing my Username and password I received from ESET.

Even tried a full uninstall and reinstall, but nothing happens..

Does anyone know if there is a registry key where ESET Configuration info is at? If that might be a cause.. Cause that is a lot of money for me to have to spend on a license..Specially working part time. Any insight as to why would be real helpful.

Edit:
1. I have made sure I typed the Username and Password, letter by letter..
2. Did a copy paste as well, making sure to not pick up any excess spaces.

 

Try clearing your update cache

 

For specific directions on clearing your update cache, check out the KB article below:

http://kb.eset.com/esetkb/index?page=content&id=SOLN2875&_ref=wsf