I entered the code and the phone welcomed me to United Mobile.
I did activate on their web-site
I did send United Mobile an e-mail telling them it is not working (no response from my email 48 hours ago)
Also, I manually selected NPI wireless as a network...the phone stated that the network connection succeeded, but almost immediately the phone went into emergency mode and then to 'searching.'
It is almost like NPI Wireless has no agreement with United Mobile.
Any other ideas?