My friend is asking if the optiguard program (php 6K) can be paid on installment basis. Since he says he doesnt have that kind of budget, he can only pay for each session as it is used up.

Also, any idea on how to remove mango tree sap (yellow) from the vehicle's paint? This sap is different from the ones that comes when new leaves are sprouting but rather it is the type that comes out when the tree's branches are chopped/trimmed. I have tried using big bert's unbranded shampoo (orange) but it is still there.

Thanks!