Sprint Plan question for touch pro 2

[JustusIV]

So i currently have Fair and flexible 550 with 2 lines, Sprint has provided me with free unlimited data on both phones and 300 text messages for 2.50 a month becuase of errors in billing they have made and reoccurring fraud that kept happening on my account. They told me i could have that as long as i was a customer to keep me satisfied. Now i wanted to buy a touch pro 2 and they said i would have to upgrade to "Evertything data family" Which that plan would roughly double my bill. After being transferred a few times someone admitted that i didn't have to switch my plan and i would just be missing out on a few feature of that plan SprintNav PremiumTV etc. Can anyone verify this?
I went into the store and the rep there saw that they had put a note in my account saying that they could do that but she didn't think they could.