Lumia 535 super sensitive screen and charging problems

[thunderHC]

The screen is super sensitive while charging and sometimes it don't even charge if the cable is connected to phone. What can i do to stop or having little bit less these problems? I have no idea do it still have quarantee on it or not. It is running the latest official release build.

 

[thunderHC]

At some point they do work, but not always. I got them from work for charging my work phone and my l535. The names are scratched off so i have no idea how to look up