They're not "on your phone". You'll log in (and out) of an account you'll create. Minutes do not have to be used all at once. You can also use your wife's package by using her login---it'll automatically bump the current user off.
We've been in Apex SV B2B on decks 7 & 12---both fantastic cabins. Eden (or OVC) noise was not an issue. As far as the sun & heat, it's more a factor of time of day/direction of travel vs. covering.
They don't. They have already refunded it. Do you think they are lying when they made that statement? By my experience credit card charges immediately post to an account, but a credit (refund) typically posts 3-4 days later. Like I said, get back to us if it's not there in a week.
That doesn't mean "wait 30 days for the refund". The refund has already been issued---30 days is how long it could take to reflect on your CC statement.
It "connects" by a little foyer area exclusive to it and 12260. It's under the outside seating area of the OVC. We did 2 weeks in 12265 and had no issues with noise from above.