They're unreliable. Our online grocery order was not delivered: instead the driver sat outside in the van a while and drove away taking our stuff back to the store. We were told it couldn't be redelivered, I was offered no compensation, they refunded this order but haven't responded to my complaints. He claims to have rung the doorbell/entry system, he didn't, it's working fine, we would have heard it, and to have left a message on my mobile phone NOT the phone I'd given as a contact number for the order and was waiting next to. I phoned customer services to ask why he was waiting outside and not delivering our stuff, they didn't know and said they couldn't contact him, just wait. I'm a disabled wheelchair user unable to go out alone, so couldn't go and ask what was going on in person. When he drove off I rang again, this time they contacted the store he'd come from who blamed me as I'd not got the mobile message. Feel very let-down, they can't be trusted, treat their customers badly, no sense of responsibility.