Upgraded lights on bakkie not working after instal

KK came to install aftermarket Xenon headlights on my Amarok. During the install he also offered to do my interior lights to which I agreed. The right front light gave an issue and he left to get a new unit. After this it seemed to be fine with only the interior lights not working as he did not have the correct globes. He promised to return later that day to fix as he was rushing to his dad who had car trouble. Never showed up. After leaving for home I saw the right front light go out again after which I called him but couldn't get a hold of him so I messaged him. He messaged back promising to fix the issue the next day and that he would call me to set the time. Now after a week I have not seen nor heard from him. Currently the vehicle is not roadworthy as the right front light is not working and I cannot get hold of Mr. KK