Fog Light Switch problems of the 2012 Kia Motor Sorento

Issue #1: the lf headlight assembly on my vehicle even after being repaired and then replaced continues to stop working. In August 2017, my lf headlight started intermittently going out and by September 2017 failed permanently. I checked the light bulb which wasn't the issue and found that the connector to the bulb was burnt out with one of the prongs melted. I cut off the end and replaced it with a new socket (a h8/h11 headlight wiring harness socket - dorman# 84783). After replacing the socket, I drove my vehicle a couple days and lf headlight failed once again. First shutting off intermittently and then completely. I then took the vehicle to my local dealership, darcars lanham kia, 9020 lanham severn rd, lanham, MD 20706. The dealership said the headlight assemble had a short and had to be replaced. I drove the vehicle home, ordered a new headlight, installed it and then drove my vehicle for a couple more days. Once again, the headlight started to fail intermittently, so I took the vehicle back to the dealership again. The new headlight failed completely while at the dealership. The dealership is now asking me to buy another headlight assembly while they reach our to kia to identify any other possible causes for the failure. Issue #2: in September 2017, both the lf and rf fog lights started also failing intermittently. At the dealership, they say that pieces of the housings for both fog lights have fallen into the lighting area and are hitting the light bulbs causing them to intermittently go out. And, of course my expense extended warranty doesn't cover the lf headlight nor the fog lights! my vehicle has about 85,000 miles and the premium warranty which last up to 100,000 miles is completely useless. So now, my vehicle now only has one working headlight and its a relatively new vehicle!.