Who else's mortgage company calls to dun you BEFORE you are late?

[Black Landlord]

Indymac. Indymac. And Indymac. Got one call once, can't remember why (it may have been on the 13th or so of a late-ish month).
Never had a late mortgage payment in 6 years (jinx).. Pay by check, usually gets to them by the 10th or 12th.