Hello, sometimes you have to make a bend in the vertical extension piece that comes down from the "lift rod" of the faucet. You should have an extension rod with a wing nut or thumb screw to adjust up and down, and holes in that piece to slide over the "pop-up" rod on the tailpiece of the drain from bottom of sink. Is this correct? That "pop-up" rod is usually a standard length. You may need to bend the extension piece to slide it over the "pop-up" rod. Kind of making and "s" shape in the vertical extension. Hope this makes sense.
GregC, President/Founder www.Quicktoolbeltsystem.com