Please has anyone found a strong dog guard that fits the Zoe boot ?

I have lost one of my car keys for my Renault Zoe. Its not a security issue as I was on holiday .... does anyone know how much difference not having two keys makes when selling the car .... would it be cost effective to buy a new set, or better to sell with only one? Its a 2016 ZE40. Thanks

Has anyone tried getting an annual service from an ordinary garage? I have always taken my Zoe to the local dealer but they are very expensive.

Has anyone else had a problem with this? I have recently have had to have it repaired at my local dealership, traced by diagnostics following a "Red Alert STOP DANGER - electric failure" warning on dashboard.