Boy, am I sorry that I did not read all of the negative reviews before using this (non)service. It's a large scam. STAY AWAY! Short story... I ordered 4 cases of water that I needed for the next day for a business meeting. No one contacted me to say that they did not have the 4 case. Someone just showed up with 2 cases. Mind you, They charged my card for the 4 and added a little extra to the authorization in case I had decided to add to my order. They did find the time to tell me that and that it will take 7 to 10 business days to refund the difference but after reading some of the reviews, I am not hopeful for that either. The point is that I was trying to save myself some time. Now, I have to scurry around tomorrow morning and buy those 2 cases for a lunch meeting anyway. I should have just gone out and bought 4 cases from the very beginning. INSTACART = USELESS.