Have I been Blacklisted at Nissan Vereeniging??

This Yestermorning (28/08/2017) I called Nissan Vereeniging to make a service booking for my NP200. I was transferred to a lady (Bianca) who asked for my ID number, she responded back saying that they were 3 weeks fully booked and suggested I try Nissan Alberton. This did not sound right to me... Later I asked a friend to call the branch to make a booking on my behalf but this time using her ID number. The same lady answered, asked for her ID number, but this time the attendant went further to request my car’s registration. My friend was then told about the 3 weeks full booking. I immediately asked my friend to call back and make a booking for her mom’s Nissan. Again, she was transferred to Bianca, who asked for the ID number but this time no car registration was requested. I was shocked when my friend asked what dates were available and was asked what dates would suit her. In this a booking was made for next week Monday. HOW IS THIS POSSIBLE!!!