Goldman Sachs insist $42.90, page-203

Large merchants or on a much better rate than 6%, it goes by turnover individually assessed.
Latitude , Zip etc run a much larger risk to both consumer and themselves by chasing bad debts.
Afterpay effectively retain the cream as the bad customers are weeded out and restricted from the service with minimal loss.
They are not chasing the late fees ongoing or interest incurred. Eventually the rest get exposed as they are not pure BNPL.

Latitude for one is simply GE Money rebranded.
Absolute money trap.