I'd be happy if you pledged but honestly, upgrading your account won't solve whatever problem is keeping you from logging in. It will still have to be sorted out by the Support people. They are usually faster to fix these issues but it is a small company and 2 people are away this weekend.
Putting in a Support ticket is the quickest way to fix things and get into the game https://seforums.pantheonmmo.com/support/open.php
If you have done that, please try to have patience.