Which Credit Cards Are Accepted Follow In the US, we accept American Express, Visa, MasterCard, and Discover. In the UK and AU, we accept Visa and MasterCard. Related articles How to Contact Us Placing and Reviewing Orders About IngramSpark 2018 Holiday Ordering Information Manufacturing and File Setup Tips Comments 1 comment Sort by Date Votes Theresa Moore February 19, 2019 20:42 I have been trying to order proof copies of my titles and found a line saying "loading... please wait..." on the place where my credit card is supposed to be loaded. Trying to add a new card says the same thing. This has been going on for 3 days. What is going on? 0 Permalink Please sign in to leave a comment.