Incorrect instructions: damaged item

I bought a black Gibson desk from your Centurion Game store today. It is a self assembly unit. The instructions clearly indicate that some of the small spacers used to hold the units pieces together need to be hammered into the specified holes. However, this causes damage to the desk top as hammering the spacers pushes them through the top of the desk. The instructions are incorrect, and thus I am now stuck with a table who's top is a massive eyesore.

I would like to arrange delivery of a replacement of the desk please, as the instructions should not indicate hammering as it causes damage.