Not a satisfied person, totally unprofessional

Good day, I am writing this review, because according to me this was supposed to be sorted out last week already. I entered a competition with Jacaranda FM, to do a test drive with 3 Kia's, Kia at Randburg did phone me to tell me if I did entered a competition, which I told them that I did, I was then told that someone will phone me from their branch to arrange a test drive and that I will also be getting a WhatsApp as confirmation, well, nothing has happened as yet, I had to resort to social media to ask Kia South Africa to investigate what happened and why I haven't heard back from the Randburg branch, for me this issue was unnecessary as Kia in Randburg have my details, but for some reason, the branch didn't go through with what was told to me.

Why must someone always do a complaint before action is taken? Is the branch so busy that they actually will forget to to what was told to me? Who must take responsibility for this? As that person must be dealt with to ensure something like this doesn't happen in the future, as I am sure that it will do, or did it also happen in the past? No one knows. Can someone tell me why must a person resort in doing a complaint before something will be done? It should have been done last week already, I am not satisfied with the service from this particular branch, if this is the way that they handle something like this, I shudder to think what they do when a person wants to purchase a vehicle.