[captain_perl]

Large companies typically do payments in batches, not one-by-one, so the redundancy is not needed.

However, if they're trying to do per ride auths, then they might need redundancy there. Hard to imagine they do that.

[philip1209]

I don't think they auth per ride. I definitely had a "you owe us money" flow after getting food successfully delivered though Uber eats on a deactivated card.

[adw]

I get push notifications on auth on both my debit and credit cards. Weak evidence, but my hunch based on what I see there is that there's some dollar value where they pre-auth (somewhere around $25, I think).