Pod coffee maker Dolce gusto compatible Krups Dolce Gusto NEO KP830810 1.3000L - Black

It's not BackMarket that's responsible, it's whoever made this machine, which only makes coffee. There is an application but I don't really know what it's for. I'm tempted to send it back. Unfortunately I have a weak stomach and can't accept too much coffee. So if anyone can tell me how to send it back, thank you.