K
KeithG
Guest
Actually pre-auth does impose a limit. The merchant can not exceed the pre-auth amount since they have only been authorized to charge that amount. They may charge less, not more.Again just your assumptions, number one, you don't know what the contract says for one thing, number two pre-authorizations are just a method to make the process simpler for the merchant and nothing more, they aren't a limitation on what can be charged.
Pre-auth is very common in online sales. You buy something online, the merchant does a preauth (for the exact amount) which guarantees they will be paid, then when the merchant actually fulfills the order by shipping it from their warehouse, they complete the transaction and get paid. As the buyer, your credit card limit is reduced immediately after the pre-auth is verified (before the merchant gets paid), but you are not charged until the merchant completes the transaction.
The most common example of pre-auth is a gas pump asking you how much gas you want to pump when you jam your credit card into it. You can then pump any amount of gas that costs less than or equal to the pre-auth amount.