I think I can help when I first used my credit card it was accepted but the site (or me) didn't save my return.I had to start a whole new account and start over BUT - I finally was able to find the issue-just for the heck of it I went to my one credit card account (site had rejected three) and looked at my profile the address for my credit card was different then the one I was using on Turbo Tax .I went back into Turbo Tax entered the new address and it worked. Now after 5 hours on the phone maybe someone should have said go back to your cc site and double check your address.I do notice that one of the turbo tax folks responded above with this :
Enter your address exactly as shown on your credit card statement from your financial institution
