How to pay for 3 years support in one go?

due to funding period, I want to sign up for 3 years support and paid in one go. There is no such option in the paying website. Is it possible to do it?

That seems unwise, given that you wouldn’t know if PTB is still around in two years.
Also, we don’t have a standardized mechanism for that, only for yearly renewal.

When does your funding period end?

On VSS at Monday, we will sketch out a potentially better way to spend your money on us:

It will end in August.