Binding posts on Kharmas'

Have a broken WBT binding post on 1.0 Kharmas'. Need tips on replacing. The screw down portion got broken off,now need to replace need help with replacement procedures. Thanks
If you bought them new, call your dealer.

If you bought them used, call Kharma.

If you stole them, please post your full name, address, phone number and the speakers serial numbers : ) Sean