Woolworths Dash App is useless

The Woolworths Dash app is shocking! It is more down the up. One checks out, approves the transaction and then nothing happens... eventually a message pops up saying webpage not available. I have raised this with the online helpdesk, various store managers and still no improvement. Tonight I missed the cut off for deliveries because the payment gateway was not working... again. The app is poorly built and often hangs. Come on Woolworths you can do better. So many people have complained about this. Checkers 60 60 app is never down, never had a problem on their app. You lost on a big shop this eve! Ordered from Checkers instead!