Beware registering for e-tolls

[agel]

Long story short; I had 1 of my cars registered for e-tolls (though both my vehicles are included on the invoice). Now I want to unregister that vehicle and I've asked Sanral what the procedure is, but they have not replied.

Does anyone know how I can go about this?

Good luck with that, I don't think that's even possible (or even if it is, I doubt they'd let you off the hook like that anyway), but I stand to be corrected.