Credit cards don't turn accounts over to collections for one late payment unless you are under a debt forgiveness agreement.
And they are not permitted to call at ungodly hours.
Something is not adding up. But it is your choice whether you use credit cards or not. I just find that this reason is a little weak.
Umm, don't be to sure... Sunoco called my house and cell when I was 2 days late... for $10.29. I had forgotten I charged it and overlooked it. I thanked them and paid.. I was grateful, and no late fee....
