Brand name not appearing in product title

Hi all,

I have a TM brand name that I’d like to have in product title as my competitors do but I can’t seem to be able to get the system to accept it. Been punted back and forth with seller support and every time I get the “Okie dokie, change made, wait 24-48 hours” but nothing comes of it. Now finally Brand Registry supports suggests I nuke my listings and “upload a flat file by doing a full update”….is that really the fix? Any tips/suggestions around that would be greatly appreciated as I’m not technically inclined.