Did you respond in 28 days?
Did you name the driver unequivocally?
Are you asking if you should fight this?
Are you summoned personally or is it the company ?
Have they not summonsed any person at all? That would be rare these days.
In that case, if you plead guilty on behalf of the company then all they can do is fine it.
They cannot add points to the licence of a company as it has no licence because it is not a person.
If the company doesn't pay then they can enforce against you but that probably isn't your primary concern.
This is why it is rare that they don't cross summons a director now.
But if they haven't done it then I wouldn't worry about that.
Can I clarify anything for you?