Burned 4th pin on the lighting cables

I have brand new iPhone X and after a month of use I have troubles with all 4 my charging cables. I discovered that all of them have blackened the 4th pin. I found out this design flaw clearly last for many years now. Is Apple somehow covering this clearly design issue?

Originally I could turn the cable to the other side to make it work, but now both sides are burned on the same place. I use exclusively Apple chargers and Apple cables.