I don't think so, because I've seen numerous other trailers listed as
Casita on this site since the change. I've never tried to create an ad myself, but based on comments I've read from sellers, it seems like some features aren't as user-friendly as they might be.
I recommend using the "contact us" link in the bottom margin of this page in small font to let the site team know about your problem.
Best wishes with your sale!