Ron is correct. Especially if you used an American Express card. Many credit card companies are good with this sort of thing, but I have heard some great stories about the people at American Express. Good luck!
1976 300D (W115) - 330K and still going (sort of)
1991 300D 2.5 Turbo - Sold at 221K
1983 280SEL - Sold at 206K
1981 300SD - Sold at 232K