Poor service from ABSA

I have had the worst experience with ABSA vehicle finance. I transferred my vehicle loan to another finance house who made payment more than a week ago. I have been trying to arrange delivery of my original NATIS to the new finance house however I receive absolutely no response from anyone from ABSA. I am utterly disappointed at how ********* they have been throughout this process - to refuse to release my original NATIS when payment has already been made is unprofessional. I have sent numerous emails to the banker who assisted and their call centers and receive no response therefore my only resort was to complain on Hello Peter