I tried to place an order tonite, using my current credit card. When I placed the order, the final screen said that the order was placed using a different credit card which has expired (which is why I used the current credit card). I tried to change the credit card number on both the app and the website and neither permitted me to change my credit card number. I tried to connect with the online Chat about this problem, waited at least 7 minutes and the instant I stepped away from my computer waiting for the Chat to reply to me, I received a Chat message saying that since I had not responded, the Chat was ended! I attempted to engage the Chat again and I was told to delete the app and try again. Before giving me a chance to try to change the payment again, the Chat said that it would be ended because I hadn't responded. I replied, saying that it hadn't given me enough time to try again but it ended the Chat stating that I could contact the Chat again after trying again but it didn't work. I called the customer service number on DD's website(1 (855) 431-0459). Someone answered and asked me a couple of questions, which I answered and the person who answered hung up. When the call hung up, a voicemail message asked me to stay online to provide a review of the service I received - to price 1 if my issue was resolved or press 2 if my issue was not resolved. I pressed "2" but the voicemail message again asked me to press 1 if resolved and 2 is not. I pressed 2 again - same problem. Then the voicemail said words to the effect that because I had not responded, the call was to be disconnected. Then I received a text message with a photo supposedly showing that the order had been delivered but it wasn't! I then received a call from DD and the person could not do anything to help me change the credit card info. I told the caller that I was trying to do the right thing and make sure DD, the driver and the restaurant I ordered from were paid. The caller replied (in a non-sequiter) that I need to dispute the charge with my bank but that was a credit card, not a bank card and since the card no longer exists there's no one to dispute the charge with. Finally, after trying to make sure the caller understood I was trying to make sure that DD, the driver and restaurant got paid, the caller offered me a DD credit for my next purchase. Terrible experience beginning to end.