How can I keep the unlimited data on my Verizon phone line?

[AC Question]

Keeping Unlimited Data on Verizon phone line

I was reading the forum and someone posted almost exactly my situation:
Here's the breakdown of my situation:

Line 1: Samsung Galaxy S4; UDP; Not upgrade eligible
Line 2: iPhone 5; TDP; Not upgrade eligible
Line 3: Dumbphone; No DP; Upgrade eligible
Line 4: Dumbphone; No DP; Upgrade eligible

I have the S4 and want to get the S6Edge+ and keep my plan. If go to Best Buy, shift a dumbphone upgrade to the iPhone 5 line, buy the phone, then what is the best way to switch it to the S4 line?

I can argue that my wife wants to switch back to her iPhone 5 and then ask Verizon to switch it the S4 line? Do I activate the phone on her line first? What is the deal with the SIM nano vs. micro cards and will it matter in this situation. Will Verizon force me to switch my data plan if I move the S6 to the S4 line? How long do I wait to switch and what is the policy on returns if all this fails?

 

[srkmagnus]

Re: Keeping Unlimited Data on Verizon phone line

Take a look at this thread: http://forums.androidcentral.com/verizon/227608-instruction-how-keep-unlimited-data-verizon.html

It's a little old, but there might be some useful information in there - Good luck!