Solved - Unable to create Amazon Studio Lab account

When filling the form https://studiolab.sagemaker.aws/requestAccount
and answering the question "Why are you interested in Amazon SageMaker Studio Lab?" with "Hackathon"
and entering the referal code "hackathon"

Solution is _ dont use any referal code at all. Keep the field blank.

the form verification process results with the error code:
The referral code isn’t right. Please try again.