I am having the same problem only mine has a little bit of complications when it comes to resubbing. For me I haven't played FFXIV in a month (I did not end my subscription which I should have done before). until 3 days ago (July 9). when I got back I logged into the game everything was fine the first night. only played for a few hours. But then the next day I had to confirm my status which I try to do that but the weird part is, It still says I have 30 days to play. (I don't know if its a glitch) But I realized later that July 10th was my last day to play FFXIV online by checking my subscription list and calculating when my 30 days will be over (But again on the mogstation it still says I have 30 days). I tried to resub but would not work and gave me the "406" code. It keeps telling me on the launcher that there is no Valid Service Account. so I guess the only way I will be able to play is through the time card instead of paying $15 through the mogstation in order to play the game. I'm still going to call customer service to see if they can fix my account when it comes to resubbing because its just avoiding me being able to play the game from the mogstation. But Hopefully the time Card will work for me. If anyone is having the same problem as I do and is able to help me out that would be great to. But I think your best backup will be the time card.