This is an odd question. For those who can pay directly at their portal, aside from aia, I know hla is do-able. Hla can paid via hlb using hlb credit card.

Other insurance conpany should have though can't say for certain. I think tokio marine also can.

The option should be available across all companies.

However, why don't you want it to be on auto-debit?
I'm curious.