Uber registration issue

For the past 5 days I have made numerous attempts to register @ uber as a rider without success.

I have tried with iphone app and pc with no luck. 

"We are unable to make an account for you, please visit... (website signup-support page)".

They require an active registration to get help ?! :/

I have mailed them from there and get no answer. I have never had an account with them either.

any suggestions - have others had this problem ?