What was happening to me was I  would leave the pitan app to check my Email for the codes but when I would go  back to the Pitan account it was like a new attempt and the code would not work. By using two different Apps at the same time I   am now able to log on to my pitn account. I dont know why they had to make it so complecated when it was very simple the old way, but I guess it was for security  reasons.