Please reach us at steve@themerchpros.com if you cannot find an answer to your question.
For Screen Printing minimum order is 24 pieces. Unless, you contact us we might be able to do less pieces depending on very specific factors, like sample pieces. Embroidery depends on how far out we are on schedule we could do a minimum of 1 piece, however contact the Embroidery Manager first to confirm.
Yes, we offer digital mockups of your design before printing. We want to ensure that you're happy with the final product and you approve them before we start production.
Always send us a vector file via E-mail, unless told to do otherwise from a manger here, as the vector files allow us to do what we need to do to get the highest quality out of your design you need.