How does the checkout part work? Obviously you can't just leave your trolley at the checkout - they need your address and need to bill you. Is there a membership card you quickly scan or something like that?
Two ways:
1. You pay and leave your delivery informations.
2. You're a regular customer and have an membership account for that.
I can see a lot of people living outside the city using this service because Monoprix is near their workplace. They go after work, ask for delivery, go back home by train, and then are delivered the day after for instance.
You sign up for free. Then you can just leave your trolley (along with your phone number so they find you in their DB) and go home and will pay upon delivery. I used this for some time and it was indeed very convenient
