Q: Charging problems and slow touchscreen problems

Hi,

I have a Iphone 6s (64Gb). I faced problems in charging as it simply stops at 40% and does go any further. Unplugging the phone and using it with only 40% charged, I experienced a slow response from the touch screen. I have tried to almost everything from hard re-start (holding home & power button for 10sc) to factory reset, nothing helped. And this is the second time I experienced this after the first time to be serviced by Apple. Anybody else to experience similar problems?