We offer free shipping on orders of mini's above $50.00Due to the weight and expense of shipping the refills we cannot offer free shipping on orders that contain sanitizer. Instead we subsidize the shipping of those orders by offering flat rate shipping. If your order contains both minis (less than $50.00) and refills, the shipping cost applied to your order is exactly what we pay to ship. We never make money on shipping. If your order contains both mini's (over $50.00) and refills, you will only be charged a flat rate of $2.00 to $5.00 (depending on the number of refills) to offset some of the shipping cost.