Thank you for reporting this issue. Actually you have two different account on PakWheels.
User - 1
Full Name: Kami
Username: SherDil
Email: itgurupk@gmail.com
User - 2
Full Name: Kamal Yousaf
Username: Speed2Win
Email: kamalyousuf@gmail.com
Car Ad you have mentioned above is posted using User-2 so you are unable to find it for My-Ads of User-1.
Secondly I have also observed that later you have reposted posted same ad Used Toyota Pixis 2014 Car for sale in Karachi - 1277908 | PakWheels using User-1.
So there is nothing wrong with system. You probably used wrong user/email while posting ad.
You have also mentioned about city issue. It was a bug and was fixed on same day. Wrong cached titles were becoming part of page source only for a day.
CC @fazalwahab11375