i have just bought a new integrated washing machine and suprise suprise the hinges on the door panel do not match up with the hinge holes on washer. the top hinge will need dropping about 15mm. to do this i will need to fill existing hinge recess 35mm dia 12mm deep. so i need something to fill this hole which can then be re-drilled. bottom hinge will be ok as will be in solid section of door. any ideas?