At least in the UK, until quite recently most networks were subscription clubs rather than pay as you go. There was no incremental charge for filing up, just a

At least in the UK, until quite recently most networks were subscription clubs rather than pay as you go. There was no incremental charge for filing up, just a £10/year membership charge. Now EVs have become more popular, the charging model is changing to a more sustainable system. The government is also working to enforce roaming between networks.