A thank you and shout out to Mr. Dan K (sorry, I lost his business card but his last name begins with a K). I had recently bought sim cards for the phones of visiting family. The cards were purchased at a Verizon store near my home in Washington DC. After checking the IMEI numbers to make sure the sim cards and my family's phones were compatible when I purchased them in Washington, I brought them to Cleveland where I was meeting my visiting family. We decided to take the sim cards and phones to the closest Verizon store so we non-techies could get help in installing the cards properly. Mr. Dan K. discovered that none of the sim cards would work in the various iPhone and Samsungs belonging to my family members and spent a good half hour or more testing the cards and phones, calling Verizon staffers customer service lines to discuss the problem, and trying to find a resolution to the issue. His patience, care for the customer, and knowledge about the products and procedures was outstanding.