I've been talking to customer care for two days and they don't have superpower to help me change the site currency because of that test gift card I ran through, which was unbelievable and hard to accept...
I went ahead and duplicated the site this afternoon and luckily because my site was still relatively young, not too much data was lost.
I still have some outstanding orders not fulfilled (due to lack of inventories), when I cancel my subscription on existing site, will it send email to customers to say I canceled their orders? I hope not !