The price that you accept is locked in and we will not change this offer at any point. The collection team is there to simply pick up your van after they have confirmed that you have the correct legal documents to sell it. The only time there will be any discussions surrounding a renegotiation of a price will be if your van falls short of the condition that you had originally described.
This can include telling us that the van was a runner when in fact it is not, or if you have failed to let us know of some major damage the van is carrying.