I had double eyelid surgery with the non-incision suture method... I’m extremely worried..

I originally had double eyelids. But when I woke up, they would come undone about twice a month, so I decided to have surgery. I went to several hospitals, and almost all of them waved it off and said they couldn’t do it. But I stopped by one last hospital, and the doctor said, “If you have surgery, they won’t come undone,” so I thought, surely they really won’t come undone, and had the surgery. But after the surgery, I looked into the non-incision suture method a bit, and they said the non-incision suture method tends to come undone easily (right now they have not come undone. But after hearing that, I just feel mentally anxious.) So I went back to the hospital and asked, “If they come undone, do you charge for surgery?” They said if they come undone within 2 years, they’ll do it for free, and if they come undone after 2 years, they charge the full amount, 900,000 won. I’m just so dumbfounded right now. “After saying they would absolutely not come undone.” I went to ask because I felt anxious about the non-incision suture method, but they set a fixed period and said if they come undone by then it’s free, and if they come undone after that, they charge the full 900,000 won... Also, I didn’t have the surgery for cosmetic purposes. I had it as a form of treatment because my double eyelids would sometimes come undone and it was causing me stress... They did not explain the non-incision suture method to me in advance either. Just “They absolutely won’t come undone,” that was all, and “For your eyes, I think doing it with the non-incision suture method would be good.” So I asked the consumer protection center, and they said these days they are receiving many requests for refunds or revision surgery after double eyelid non-incision suture surgery comes undone.. When I asked the consumer protection center, they said they would proceed with a damage relief process and mediate between both parties.. meaning revision surgery or a refund... Seeing the doctor really set a period like that and say it, I think it’s too much. If they come undone, what should I do? Once 2 years pass, I’ll be 27 years old. I’ll probably still be a student then... I’m posting this as a side question, and this is it ---> Does the non-incision suture method come undone in 60%, more than 60 out of 100 people? I went to a Cyworld club and it was written like that. What should I do? If they come undone after 2 years... just thinking about that now.. is horrifying.