I'm having the same issue after resetting my PC. After reinstalling Warframe, I went and put in a ticket with support, but they're asking me questions for verification, the thing is some of these questions are for things that I don't even remember. How is that even supposed to help us??? It's so frustrating because I just recently got back into the grind, and now I feel like they just want to take my money and leave. This is probably the worst functionality that I ever had to deal with with an online game and overall bad customer service... I'm going to keep trying but this is just ridiculous.