Did you mean to say you called before March 5th, as that's when the category increased. If you did, tell them to deposit the different in category as has been done in the past (and currently) & attach the cert. Tell them that's all you'll accept. Get the Lurkers involved if you need to do so. Others have had it done correctly. You just need to find the agent/supervisor that knows how to do it.
Cheers.