Clickworker: Never received a payment on my bank account, almost 1 month has passed. No answers from the support team.

I have an invoice of 70 EUR that was created August 15th, all payment details written on the invoice are correct, but I still didn't receive any payment. In fact, the "Paid at" section in the invoice list is still blank. It's not on hold, I already checked. I've sent several mails to the support team during the last week, but no one is answering me. What should I do? Wait and hope? It's really frustrating...