F that guy and throw money in his face...
As a SE, he should be more than interested to "serve" you really as
he gets commission. Just screw him, go to the same showroom, ask
for another SE or act as if dunno this guy SE that you approached.
If he ask why never look for him or what or if the new SE ask that,
say his attitude bad loh. That's too bad really. You are the
customer, u have the final say.