One doesn't notice that it is a scam at first! Booking process is very smooth. One week before departure I received an email that an amendment was required. The link provided in the email takes you to a webpage which only lets you confirm the amendment without showing any information or what the amendment is about. Once clicked you receive an email that the booking was successfully amended, but nothing changed. A day later I received my voucher with the confirmation, pickup time etc. Unfortunately no-one was there to pick us up. The agent responding the emergency number informed us that our booking was cancelled by Hoppa and that they could not do anything about it, also not sending a new driver. This resulted in us negotiating with a Taxi driver next to the road to take us to the hotel. I tried to call the UK number many times to lodge a complaint, unfortunately one does not get further than listening to the waiting tape. A complaint can only be lodged via the website, there are no contact details. The email received after two working days informs you that they regret what happened and that they refund you in Hoppa credits, whilst I paid an additional EUR 21.60 to get a full refund. Eventually one needs to go to the refund website, which does not work either.