How i can delete all dubles in hikashop

Hello,
I want delete all dubles in hikashop
I delete dubles
tuzhilkin.kz/electroinstrument/category
on
tuzhilkin.kz/electroinstrument
it is i did like this:
RewriteBase /
RewriteRule (.*)\/category$ $1 [R=301,L]

in htaccess

But!When i want delete this
tuzhilkin.kz/oregon/product/listing
to
tuzhilkin.kz/oregon
How i can do this?

Hi,

How about doing like below ?
RewriteBase /
RewriteRule (.*)\/product\/listing$ $1 [R=301,L]

It is not work,
page tuzhilkin.kz/hsn/product/listing didnt open, after i wrote this rule(((
and this page too tuzhilkin.kz/hsn/
i tryed but anything don't work(((

I'm not really a pro on URL rewriting with htaccess. I would recommend to ask on a htaccess specialist forum. They should be able to help you better than me