Why does the NJ courts send out a card to say I have to serve fo

Villas - Why does the NJ courts send out a card to say I have to serve for jury duty. This is what happens when you register in a different county, I was exempt from the previous county. But, the only way to fill out the questionnaire is online, guess what, it is out of service for maintenance for a week. What do seniors do if you do not know how to use a computer, I do, but the woman who answered the phone was snippy, told me it was easy, you have to wait a week! Some people it is not!