I don't know as I have not tried to activate ISIS as yet but go to this web site https://www.paywithisis.com/contact-us.xhtml and try the lost phone link to see what that offers since you do have an ISIS ID and password. That page also tells you to call VZW for assistance. If you call that number you may get someone which may be more knowledgeable on ISIS. Good luck with this as I was about to activate ISIS as I just got my new SIM with NFC but I am going to wait and see where this goes with your issue.
On your side note this is a peer to peer board and VZW management rarely if ever reads any of these if you want to give VZW management a message you have to look up the phone number or email addy here on the web and call or send them an email. A VZW employee comes buy once in a while but they only leave messages to see the news link they leave where VZW leaves announcements.
Good Luck with getting your ISIS working on your new phone. I hope it won't be to much pain.
Hi MrJerseyMark. It looks like you've been working very hard to get Isis up and running on your replacement. Since you've already uninstalled & reinstalled, reset Isis, and requested the NFC SIM, our Technical Support Team will need to take a closer look at what's going on. If you are still having trouble with Isis, please hover over my name and send me a direct message with your name and mobile number so we can get you working again.
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Hover over jenniferh_vzw to send a follow request. Jennifer then has to accept the follow request and send you one back. You then have to accept their follow request before the option to send a direct message is available.