I am installing a kaboodle kitchen and the instructions say the plastic lugs should already be in the screw holes - if they aren’t you need to hammer into the pre drilled holes prior to attaching the hinge. None of the lugs are in the pre drilled holes in my panels. The lugs supplied with the hinges do not fit into the pre drilled holes. I have tried hammering but the lugs will not go into the pre drilled holes. What do you suggest?