Poor frontline support

It’s been 6 months since I’ve sold my vehicle and the dealer who put still hasn’t received Natis documents. According to MFC stuff these were received and signed. I nor the new vehicle owner have received the documents MFC needs to fix their delivery module, now the dealer is about to loose out on a sale all because of incompetence this is unacceptable. The frontline desk still can’t come up with a solution they keep on investigating and giving details of what we know has happened this is very disgusting and unhelpful.