This is pretty much copy/pasted from a boiler plate text I have (with some modifications). It's such a common problem in my contract work; the moderate but pers

This is pretty much copy/pasted from a boiler plate text I have (with some modifications). It's such a common problem in my contract work; the moderate but persistent tone took several iterations to get right. First time I wrote such a letter it was basically a bit of a rant and the solution was protracted to say the least. As you say: getting them on the phone (or often just the threat of being on the phone with you) is one of the best motivators :D