This site is a con. Do not use to advertise or to do tasks. They have disabled their contact page and have not responded to payment requests, even though it may say 'paid' on the account there are no PayPal transactions to verify this.
It took a couple of months before they would pay last time, and that was after over a dozen emails and communication through the contact form. If the contact form is disabled (now for a month) there is a good reason, as they don't want people to contact them.
The tasks are questionable and some illegal, from fake reviews to voting for a business to win a competition as well as making rude remarks on social media accounts. Avoid and don't use. They owe me money, but I doubt I will see it. I just don't want seekers to pay for something and the solvers never get to see a penny.