It seems the phone is a bit out of fashion. Questions and follow up questions can be answered quickly by phone. I would not be the greatest at FB and in the end it is not a very efficient way of getting info. Even e-mail.... every email one answers 5 more questions come back. As a supplier it is quite a bit of work. If I look back in my e-mail folders there were something like 70000 emails without the deleted ones in the last few years. All for free....
edi