[Fat Grafting] It's not in the category. Calf surgery failure

After looking into hospitals, I had the calf nerve block surgery at a hospital that was considered the best in the region. I had reoperation because it didn't work. They said they informed us that it might not be effective, so why did they go all the way to Daegu and pay a huge sum of 3 million won in cash to have the surgery? And the reoperation also didn't help. Now, 5 years later, as a side effect, I started cramping several times a day and was diagnosed with varicose veins. I have blood circulation problems. They say there are no pictures before surgery. I lost my USB. I can't sue and it's unfair that I just lost my money.