None of that works! I've tried what you suggested in both Chrome and Microsoft Edge on my desktop computer, then I tried it on Chrome from my iPhone. I have tried FOUR DIFFERENT CREDIT CARDS. I get the same error message every time. This is a problem ON YOUR END.
Somebody please help me, this is awful!
Nevermind, I have a solution: H&R Block offers exactly the same sort of service as Turbotax at the same price and their reviews are better, I just got an account with them and will be using their service from now on.
