Howdy
Last time I called, the phone message said he was not taking phone orders any more. I ordered what I needed by downloading the order form from the website and got it in a few days.
I have been using Belt Mountain products for quite a few years now. They are excellent quality and I do not hesitate to recommend them. In the past, I talked to the owner on the phone and got excellent advice on what I needed.
Belt Mountain is a one man operation. His business has grown and he simply does not have the time to answer the phone personally anymore. Maybe he is taking a day off and has not had time to answer your e-mail.
Visit the website, it is pretty self explanatory, and you should be able to order what you need by downloading the order form.