Narva H7 Surefit LED Globes Gen II

I thought they were great at the start. But a year on they flicker and the right one has stopped working and the left only half of it works. I also purchased the canbus correction kit but the bulb warning is still on. Took bulb back to repco and they tested it on a battery and said there is nothing wrong with it so not a warranty matter.. fitted to 2019 vw amarok