Google Sitelinks not working for non www reference

Good day,

Due to restrictions as a new poster, I cannot use urls or proper w w w references, hence the spaces.

I use a mod-rewrite in my htaccess file to forward non-w w w to w w w for my wordpress site. All internal links are relative and so reference w w w.

My Google sitelinks work for a direct domain reference that includes the w w w, but no without w w w even though it is the first listing. I am also the first listing if you simply type domain, but the sitelinks do not work for that reference as well.

Does anything come to mind as to how I can get the sitelinks to work for more than a full URL reference with w w w?

Thanks