I am having the same problem. Going to the Password Reset page just returns me to the log-on page... none of the usual messages on password reset pages (e.g., password reset... email sent with temporary password... etc. none of that). Trying the help chat now, but really the Password Reset page is clearly broken.
BTW, I put $25 on my GoPhone in mid-Feb, so it should be still valid. I also do not live in the US.