Can't message creatives and contest holder

I am not able to send message to creatives. This shows up “Sorry, your account is not authorized for sending private messages.” and the same shows up when I click on ‘Send Message’ on right bottom on contest to ask related questions which shows up on ‘messages’ tab on the contest page(if I am right). Help! I m new on Squadhelp.

I am allowed to send messages, but on my iPhone I can’t scroll the message pop up to get to the send button. iPhone 6s Safari

Probably being so new, you do not have the privilege yet to send PM’s