Interesting. According to their General Terms and Conditions since they migrated your account to iconomi.net, United States residence aren't allow to use the website or the platform, so if you login to withdraw your ICN you're breaking their T&C.
Website shall mean
www.iconomi.net.
8. ELIGIBILITY
8.1 The Platform, the Website and DAAs are not offered for use to natural and
legal persons, having their habitual residence or their seat of incorporation
in the following countries: i) the United States of America, i) Saint Vincent
and the Grenadines (Restricted Areas).
https://www.iconomi.net/terms-of-use