The same thing just happend to us although we were suspicious from the beginning. Her lack of professionalism, typo's and lack of informative responses. I too was taken to the Inspicio link to pay off my daughter's phone. I knew immediately, after 25 years of dealing with Verizon that it was very suspicious. I did not enter any credit card information either.
Inspicio is a Verizon service. It's to get payment and terms and conditions accepted in real time instead of having you dig around your email.
Same thing happened to me. The agent was very nice, but didn't send links for Verizon pages that was weird. I also purchased a phone with a $400 discount, but the contract had the full amount! Then on top of that my Credit Card carrier rejected the Sales Tax transaction as suspicious. I made the purchase on the promise that the chat session would be emailed to me