License discs are missing in delivery

Usually using eNaTIS to renew my car and trailer license discs is a wonderful experience. I rave about the process as I no longer stand in queues for hours at the post office or license department, I get an sms reminder, go online, pay, and I have my discs within a week. No such luck this time. Firstly my reminder came after my discs had expired. I wasn't worried because I usually get the disc in about 3 days from paying. I get a message from SkyNet on 29th Nov to say the delivery would be made in 3-5 working days. It is now the 9th Dec, no sign of a delivery and SkyNet and Natis are unreachable. I am R1 400 out of pocket and have no license discs. Why does Natis use such a terrible and unreachable courier service. Are they even in business anymore? I am quite desperate as I do not know how to get my discs.