What happens when a customer sells their car?

Each service plan is linked to a specific vehicle so it cannot be transferred directly.

However, you can cancel the existing plan at any time and choose to refund the balance to the customer and start a new plan from scratch. 

Or alternatively hold the balance on account and start a new plan minus the the previously collected balance.

As the customer will already have an active account in serviceSplit, all they'll need to do is select they're preferred payment method and activate the new plan.