Absolutely, as long as I can communicate I'm Ok with it. Actually I prefer e-mail, I can think about what I want to say and put it as clearly as possible. Phone calls are great, but many high end companies are small and don't have the staff (or funds) to have a dedicated person to answer questions on the phone.
Would you buy from a firm that has a policy about not accepting phone calls
Personally I would not. Call me old school but to me communications are the most important thing in handling business situations. Sure e-mail, faxing and texting are all great but nothing makes up for personal service you receive from getting a phone call.