It's not "THEIR fault" that you forgot to mention that you weren't the LEGAL PERSON, they're simply operating on presumptions. The burden of correcting that error lies on you.
That's how you have to treat it.
Printed copy · Anthology Volume 5, page 844Printed copy from The Tender For Law Anthology, Volume 5, page 844 (printed 13 June 2014). Added by this site; not part of the Facebook export.