Fuel provided for private use

I was updating my Company Car details in relation to replacing an existing car with a new car. I inadvertently entered 'Yes' to 'Fuel provided for private use', when the correct answer should have been 'No' I logged back in to try and amend this only to find that this was not possible. It appears that all I can do is to remove/stop the Private Fuel benefit from the day following the day that it was started. Is this all I can do or can this be amended/removed entirely ?

Hi,

If you are unable to amend this please contact our Income Tax team.

Income Tax: general enquiries

Thank you.