Yes, I got fleeced at the very same Heathrow office by some smarmy salesman after travelling for 25 hours from Australia. I arrived at the Green Motion office at 7pm, totally f****d. I was up-sold insurance and the really annoying thing was I knew at the time I was being fleeced (£300 for 20 days hire) but I was so dog tied and had to be in Scotland the next day , so I didn’t argue . Well actually I did, but then came the hard sell- the shyster rep told me how expensive a windscreen was for that particular vehicle (Peugeot 208), more expensive than the extra insurance. Still not convinced, I argued a bit more – then out came the real sting. When you arrive at the office the staff are chatty, asking about your flight details, times etc, so innocently you tell them (mine was 10am). Then, armed with the info, the rep explains that their office does not open until 6am, so if you don’t take out their extra cover - and on return the yard crew inspect the vehicle and find any scratches, bumps, rips etc, the paperwork can take a long time, sometimes 2 hours, which of course meant I stood a real good chance of missing my flight. It’s true what they say – ‘if it sounds too good to be true, it usually is’. NEVER AGAIN!