Postpone Payment

As a Legacy player, I currently don't have faith that I will not have issue between now and the 9th of Sept. I have only been able to play my legacy account for 3 hours since early access started.

I am sure the game is good and I will be spending years playing for it. But I think I want to wait till 2.1 is out.

I'm not sure how to opt out of paying for FFXIV while still paying for FFXI as I have both on the same SE account on the same CC.

Do I cancel my service and reactivate it, if so how often can I do this.