Unexpected $66.78 interest charge for 2-hour late credit card payment

First … this has nothing to do with “Apple.”

(Apple is not a credit card issuer)

Late charge fees and all “grace period” policies are determined by the card issuer and described in detail in your card’s Terms & Conditions.

While the interaction you describe certainly doesn’t sound very “nice,” it’s not necessarily wrong or illegal.

Refer to your card’s Terms and Conditions for the exact details applicable to your account.

Unfortunately that is the terms of the card for calculating interest:

• Your payment is due by 11:59 P.M. ET on the last calendar day of each month.

https://www.goldmansachs.com/terms-and-conditions/Apple-Card-Customer-Agreement.pdf

Instead of sticking to the terms and telling you there is nothing they can do, you did get a reduction of the interest for $25. I have seen other credit card companies not even offer that on a late payment and also charge a fee on top of the interest charge. The Apple Card does not charge any late payment fee that you may see on some other credit cards.

I understand that is not want you want to hear and not a resolution, but since Apple is not a bank, they don't have any ability to make the decisions for Goldman Sachs. The same is true for any company branded credit card. For example, Alaska Airlines has a credit card managed by BOA, and it is not Alaska Airlines that is involved with dispute resolution. By the way, that card would have charged you $29 for the late payment on top of the Interest charge.

I didn’t assume that it was an AppleCard …

… but if it was, you are spot on about the already generous terms.

I know of no other card which grants such a long grace period. [e.g. Payment for purchase made today (11/1) isn’t “due” until 12/31]