Instacart employees regularly tell me items in my cart are 'out of stock' when they simply want to limit what they deliver. Instacart also charges 'varying' service fees, and in spite of my repeated phone calls, do not disclose how these fees are calculated or change with every order. Often time the service fee is twice as much or more as the delivery fee. The way fees stack up against the items order, combined with their terrible customer service and shady employees, makes Instacart a waste of time and a burn of. Money.