We are sorry that Tomcat Mole Trap did not control your moles as expected. Before using Tomcat Mole Trap, use a ½ inch dowel or stick to puncture holes in the tunnels. Mark holes with lawn flags or something that will make the holes easy to spot. Be careful not to crush runways. After 24 hours, inspect the holes. Sealed holes are a sign of mole activity. If the mole tunnel has been closed while setting the trap, moles will not re-open a closed tunnel. Instead, they will make a new one. It could be possible that the tunnel you are trying to place the trap in has been closed. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please call 877-220-3089 for assistance. When calling, please refer to this review.