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I am about to pay using a credit card, but no further page shows for me make payment. Unable to connect An error occurred during a connection to microservices.cdc.nicusa.com. The site could be temporarily unavailable or too busy. Try again in a few moments. If you are unable to load any pages, check your computer’s network connection. If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.