booking DTCI?

Hello
i am flying from LHR in january UC and i used virgins live chat to ask about the DTCI and if i can book my slot now to have my family relative drop me off and shes said the following below...Is she right?
"This is only available to you if you receive an email from us, the only thing you can do now is use points, or pay for the full car service. "
Followed by my reply is this using airmiles....
Agent:"That is correct, you can spend 17500 Flying Club points on a car one way through the Contact Centre, would you like the number to call to add this on?
Also i can only use DTCI if i receive an invitation?
Can some one please give me clarification as you guys/gals make more sense compared to the VA live chat..
thanks
i am flying from LHR in january UC and i used virgins live chat to ask about the DTCI and if i can book my slot now to have my family relative drop me off and shes said the following below...Is she right?
"This is only available to you if you receive an email from us, the only thing you can do now is use points, or pay for the full car service. "
Followed by my reply is this using airmiles....
Agent:"That is correct, you can spend 17500 Flying Club points on a car one way through the Contact Centre, would you like the number to call to add this on?
Also i can only use DTCI if i receive an invitation?
Can some one please give me clarification as you guys/gals make more sense compared to the VA live chat..
thanks