So I spent a ton of time on the phone with them... But they honored it! I called twice before- once an agent told me that it's impossible to switch. Next- an agent told me that I can switch no problem. (Even though I knew this wasn't true, it was my way in) she sent me a confirmation email saying that the new flight was booked. Within 1 hour I got a phone call saying that they cannot switch the ticket and I explained that the agent told me I could. They said they'd call back today with a decision. They made it very clear that it's a one time exception and that they are only doing it because they listened to the phone call and the agent did tell me that I could switch which was wrong on her part. But I was very persistent- try it! I told them that I already switched my plans based on the info from the agent.