Does my address, postal code, etc get shared if I'm not buying a physical product?

Does my address, postal code, etc get shared if I'm not buying a physical product?

In the past, when making a purchase I never had to provide any shipping information. Today when I made a purchase, I was prompted for my shipping information. Since I pay using PayPal, the default information in my PayPal account is used automatically. The product I purchased is online; there is nothing to ship. In this situation, does SeoClerks still share my address, postal code, and other shipping information with the seller? I really don't want stuff being shared, unless it needs to be. It's a privacy concern.