Other Fuel System Tank Assembly problems of the 2014 Volkswagen Jetta

The epc light came on and I pulled to side and turn the car off. When I turned car back on the light was off. Then it came on another time and I notice when trying to accelerate to the car is lagging. So I decided to take to vw dealer in martinez GA and they said I had gotten some bad gas, they added some 44k additive to the tank. I was only using shell gas, so I was told to try another brand that was a top tier gas. I tried citgo and they had the top tier sticker on the tank. The car drove good for a day and a half then the light came on again with also the check engine light and the car started to shake. I have reached out to the dealership online and I got a call from a sales rep, who said she could help assist with purchasing a safer or new car. I don't want to buy another car at this time. I only have 125k miles and the car was running fine. I looked on the internet and I see that this is not a new issue with vw Jetta from 2014 to 2018 and vw has not figured out the fix for it. I was supposed to get a call back from the service advisor and I have not heard from him. So at the present time I am driving and pulling to the side of the road to get the light to turn off. When I get home I try not to go anywhere other that to work and back.