OK, Andrew, I see the problem. I didn't know what you meant when you said you made your extra payment "in the middle of my payment month." You *are* talking about the time between the closing date of a statement and its payment due date and for you that period *is* an entire month (or just a couple of days less). So of course you are OK as is anyone with almost a full month payment period.
When I had my squabble with Citi 10 years ago that period was not a month - it was only 12 days. That left about an 18-day period during which payments were too late for the MDP for the prior statement and too early for the MDP for the next statement.
Just within the past year Chase VISA stretched my payment period from 21 to
28 days but I thought it was still the 14 days it was a few years ago. Since I pay my balance online as soon as I get my statement I (obviously!) pay no attention to this matter.About now I'm feeling like a fool. Will you forgive my stupidity if I promise to put on my dunce cap and sit in the corner for an hour?
Jerry