TBH I felt 100% ripped off by my Twizy service, £70 for what was basically an MOT check over. Nothing replaced, nothing changed.
I'm in total agreement that the franchises see electric cars as a major threat to their industry and arent interested in selling any. From their point of view they would effectively lose 80% of their current aftersales/servicing/repairs etc.
I rang Renault to see if it affected my warranty if I didn't do them anymore. Answer was technically no, but it could affect the drive battery warranty if something should've been highlighted during a service. Was more of a "I wouldnt risk it".