I still do no understand why charges are not posted instantaneously, or within an 30 minutes. Surely each time a transaction is processed, it needs to hit Amex for authorisation? If the transaction proceeded then it should be visibile online within a matter of minutes.

While I must admit that my Charge card does post transactions faster than my Visa (or my Amex Credit Card), I still think it's a little slow. Charges that I put through on Wednesday, Wednesday Night/Thursday Early Morning are often visible on Friday Morning.

Am I missing something fundemental about how payments are processed?

Cheers

Chris