Issue: I am trying to sign in as a root user for my account from the AWS portal, but now, after I adding my password I keep getting redirected to: 
<https://portal.aws.amazon.com/billing/signup?redirect_url=https%3A%2F%2Faws.amazon.com%2Fregistration-confirmation#/start>, no matter what.  

It was working fine till today, first time I've encountered this redirect.  

Main Browser : Chrome - Version 62.0.3202.94 

Based on what on similar cases found on google I tried the following and still did not manage to sort out the issue:  

-Chrome: deleted all the cookies and cache data   

-Chrome: restarted the device and also the browser  

-Chrome: used incognito mode   

-Firefox ([an aws member said is the most suitable browser](https://forums.aws.amazon.com/message.jspa?messageID=260872)): tried normal and private mode  

-Firefox: deleted all the cookies and cache data  

-Edge: tried normal and private mode 

Someone suggested already to make use of [S3Browser](http://s3browser.com/), it does not seem as a efficient solution just to access the AWS Portal a few times a week so I am keeping it as the last resort.   

If anyone experienced the same issue or has any more suggestions/ideas would greatly appreciate some help.

Thanks in advance.