Terrible!! Huge risk of being disappointed

Uber East has spoiled many evenings for me. The latest is a driver that doesn't read delivery instructions - goes to the wrong place, makes no effort to communicate, doesn't answer calls, and then simply says your order was delivered. I requested a refund, but ironically there isn't option for me to request a refund of the tip I add to the order upfront. Terrible terrible terrible deliveries and no shows!!