Free Samsung Watch Promo Issue

I got the same deal.Called in  before I ordered to make sure the watch was actually free and was told it would run off the data plan I already had..Waited 6 weeks and still no code. Called back in and after being transferred 3 times finally got a hold of the web store. Was informed that I would recieve a code by email; I got the code 10 days later. Now trying to get the code to work is impossible. Tried to order the watch only to find out it requires a $15 data plan ( so not free) and then noticed I would be charged @$45 a month in total ..Back on an hour hold to get a hold of the web store and still don't have an answer or a smartwatch ..