Spot laser

I received treatment for melasma at a dermatologist in Cheongdam, and my entire face was retouched with a laser, so now my melasma has become widespread and dark, and the areas where I had no melasma, such as my cheeks, forehead, and chin , have become pigmented and cannot be covered by makeup. The doctor just calmly said that I would get better, but did not give me a refund or any other measures, so in the end, I was so mentally exhausted and stressed that I gave up and did not go at all... Is there a way to punish these irresponsible, conscienceless, and incompetent doctors ? The money was very expensive because it was in Cheongdam-dong, and they advertised it like a doctor who graduated from the dermatology department at Seoul National University and has been dealing with melasma for more than 10 years . After seeing this on other people's faces so many times, I feel so unfair and distrustful. Is there any treatment for side effects of melasma or severe pigmentation ? Isn't it good that you are here at Seongyesa Temple? Please give me a recommendation ㅜㅜ