Why is CCD linked to unregistered number ***

From my research I noticed that CCD Johannesburg has very good ratings, but not in Cape Town. The number *** (unregistered call center used by CCD) called me regarding my FNB card delivery. They had the wrong address and the person on the phone could not understand me well. She had problems taking down the correct address and couldn‘t understand the spelling. I had to repeat letters and spent minutes on the phone. Very *********** and unqualified for a call center position. Apparently many people complained about the bad reception when dealing with the call center or CCD directly. Both are in the same building. They need to upgrade their phone lines/network. CCD didn‘t phone prior to delivery and used wrong address. The FNB protocol is that they should phone, but couriers often use personal phones and don't want to incur costs. After loosing my cool, I received my card and the delivery person was very friendly (hence 2 stars) and showed me the incorrect address details on her delivery sheet. No unit number was entered. Bad admin and bad call center service. And why use the number ***, which is not registered as a business. I seriously thought I was getting ****med. And this is linked to reputable banks like FNB. FNB should investigate it and ensure better transparency and service from their 3rd partner CCD couriers.