I have a few questions please:

How long is the "free trial"? after the free trial expires is there a contract or month to month? After it switches from free trial to self service we would then have to pay 0.25% of total billing?

Thanks for your assistance.

The Free Trial is the first $15K that you bill... Our subscription is
purely pay-as-you go (0.25% of your billings to a max of $600 per calendar
year). You can cancel at anytime, no commitments.