Unprofessional and unacceptable!!

This is not the first time that my food hasn't arrived. Your drivers are seriously unprofessional. He kept ignoring my calls and reading the messages on the app. When I eventually got hold of him, he said he is on his way and the next thing I see on the app that the order status says delivered. How was the order completed with no pin???? There is no way to contact ubereats directly!!!