Woolies Dash App worst delivery app in SA

I tried the Woolies Dash app for the first time today and was bargaining on it to work. I have added my items to my cart but as soon as I go to checkout it freezes and gives me a blank screen. I have uninstalled the app, updated it, restarted my phone (Samsung S20 Ultra) but it is still not working. I called the call centre and held on forever and was eventually cut off.