Cancelling a VT within 24hours

[Ducati996R]

Hi

Anyone had experience of cancelling the notice of VT on PCP car finance ...
Had the car up for sale for a couple of weeks with a few time wasters etc ..so decided to process the VT earlier today by Email ..got the automated reply that my email received we will be in touch but it's taking longer than usual to reply ..got a call tonight from what seems to be a serious buyer ...wants to collect car tomorrow lunchtime...thought on issue