Logbook - waiting 2 weeks for it ???

Hi, i am hoping that someone can assist me. I purchased a vehicle 2 weeks ago from We Buy Cars Durban 2 branch. I am still awaiting the logbook so that i can transfer the vehicle to my name. Can you please advise as to why it takes so long and how much longer i need to wait for the logbook to be sent back from your h/office ? The saleperson has stated that he has expediated the request but still no luck or communication from him for a week. Please advise, thanks