Hi. Sailing on the Getaway in Feb. 10 day cruise. Confused about these various options. 1. I have the Free at Sea 150 minutes "free" wifi. 2. I have sapphire status so I have a 20% discount on wifi. 3. Can you purchase the "upgrade" offer ($199 or $299) on board or does it have to be pre-boarding? if I can buy when I board, I can use onboard credits. I realize if you do this you don't also get the 150 minutes from the Free and Sea package.  Or: 4. If I don't activate the Free