Unfortunately, if I were reviewing this, I would say that many of your duties match NOC 1524.
http://www5.hrsdc.gc.ca/noc/english/noc/2011/profile.aspx?val=1&val1=1524
The lead statement of NOC 6222 is "Retail and wholesale buyers buy merchandise for resale by retail or wholesale establishments and are usually responsible for the merchandising operations of retail or wholesale establishments." This implies a higher level of responsibility...
But I wish you luck It may be that there's nothing you can do until it is reviewed ...