Getting answers
I had previously thought this problem was mainly with the owner of the company where I work, but realize after reading posts here that it's all with me because I have AS and he doesn't.
I do collections for a company that works mostly with other businesses, so I'm collecting from business owners, managers, etc. The work our company does billed hourly. For this reason, many of the billings can be open to interpretation. Some of the business owners we work for have known the owner of the company I work for (I'll call him C) for many years. They will say things like "C told me that he was going to adjust our bill because we didn't really ask people do come in and do some of the site visits that were billed." We also get "We didn't get the report in a timely manner and had to turn to someone else to do the work".
I had thought that a lot of these were just excuses, but sometimes they are valid. The owner of the company wants to be told about these things, and **he** wants to be the one to make the decision But he is very slow in getting back to either myself or my immediate supervisor with answers, or in getting back to the client when they request a call from him. In the meantime large sums of money remain uncollected. In looking at the accounts this was a problem before my time as well, which made me think that the owner really doesn't like to answer questions that don't have quick answers, because he is extremely busy and overschedules himself (others have mentioned this as well).
No one is saying I'm not doing my job well, or that I'm not collecting things I should. However, the owner will ask how much we collected in any given week, and it'll be below what he expected and he'll frown or comment on it, and I can't help thinking that eventually he'll hold me responsible for the money that's going uncollected while waiting for an answer from him, and fire me or ask my boss to fire me. Though the owner actually seems to like me now, this won't last if he feels I'm not getting the work done. People have been let go at various times who at one point seemed to be doing very well.
The other option is to look for another job. But why would I say I was leaving my present job? Of course I couldn't give the real reason or they'd think I was a slacker who liked to blame the boss for her problems. Plus because of AS I'm so afraid of how I come across to others, maybe I would never get another job. The only reason I got this one was because of the high turnover, I think.

Thanks!
Malcolm, thanks for the helpful feedback! I think it's right on. Plus, the owner apparently told my boss this week that he would probably respond best to emails that give him a choice of actions we could perform, and he could tell us which one he wanted us to do.
The Medium is the Message
Ah communication!
Everyone has their preferred mode of communication and - hopefully - you have found his!
Good luck.
Mal
Responsibility Higher Up
Difficult!
I think what I would do is: a) tell my immediate superior about my concerns. It is his responsibility to support you and, if nothing else, you will cover your position somewhat or;
b) talk directly to the ultimate chief. You say that you have a good relationship with him? If so, it sounds as though you may be able to get him to listen.
Come at it from his perspective: "I fully understand that you want to be close to the customers and that you must get the cash flow going. However, I could do this is a lot better if we could have a faster turnaround [from you]".
My one caveat would be that I would seek permission or at least tell my immediate superior.
I think that it is very important to ensure that responsibility is passed upwards. that is what senior management is there - and paid - for.