I got an offer to upgrade to a new phone for $0 as part of a Black Friday Deal. It says I can claim it until Dec 9th. I went to do it on tab mid and it said if I went with the tab plus I could keep my current plan. 

When I went to tab plus and select "keep my plan", it takes me back to the last page, and the only option I have is to select a plan again. It's not giving me a check-out option.