Ignore Chris, he stirs the pot with bs then gets defensive will people use facts against him. He's litterally been doing the same shit for years and hasnt learned from it.
One of two things happened... either the systems messed up, or your credit card company declined the transaction and it was removed after a few failed attempts. No human touched your account. Here is how it works with most major companies..
Attempt to bill, get declined, remove, charge you late fee, call when past due. If the credit card company did it then you are technically responsable for the late fee. However most companies would credit it back in a heart beat since you did have auto pay. If the rep gave you push back over $5 they were wasting your and their own time.