Can I modify my form of payment? BESTSELLER SERVICE 17 May 2018 13:58 Updated Follow Unfortunately, once the your order is placed, you cannot modify your form of payment. Related articles When will I be charged for my order? Are gift receipts an option? What methods of payment can I use? Why does my order say DELIVERED, when it was never received? Can I pay with a gift card online? Comments 0 comments Please sign in to leave a comment.