Poor service

I paid for overnight delivery and I got only got my item two days later... I had phoned four different people at customer service and all of them put them phone down on me after requesting delivery as soon as possible. The app is not user friendly as it does not pick up the exact addresses which confuses the drivers. When the drivers cannot find the address, they do not even communicate with you they just leave and not pick up. Overall, not happy with the service..