I won't go through the whole story, but last month Delta took me to Germany for the 2nd consecutive time on business - and arrived me there 7 hours late for the 2nd consecutive time as well. I guess I'm a slow learner?

On June 28 I wrote a three page letter to Delta's Customer Care division about business travelers and Europe. Expressing my disappointment over arriving twice in a row having missed an entire business day due to their apparent inability to get travelers to Europe on time - and the second time having lost my luggage to boot.

I haven't heard a word from them. How long do I wait it out before contacting them again? (if I even bother, I suppose....)