Terrible service

I bought my 70 year old mother a Kia Picanto at the East Rand Branch over 2 months ago. From day 1 we have had nothing but terrible service. Firstly the licence took days to arrive. Then we noticed the tyre guard was missing and for over a month we have called on a daily basis, no one returns our call. When they do bother to answer they say they have ordered the part and will come and replace it the next day. The next day arrives and then its the wrong part. I have had people arrive at my house to take photos of the Vin number when surely they can just ask for it to be read to them and they should this on file. This has been a month of calling everyday and just excuse after excuse, its enough now