Unspecified health insurance group denies my coverage... help???

So I'm sure you guys are aware that a certain insurance group is notorious for denying their patients. And ofc what resulted from it recently, just to give you an idea lol. So yeah, I'm unfortunately under their insurance because I really have no other options right now. Well surprise surprise, my top surgery request was denied. I did literally everything to appease to them, I got my support letter from a licensed gender therapist stating my diagnosis of gender dysphoria, got it signed by not only the therapist but her superior as well, she followed all guidelines to make the letter as convincing and urgent as possible. I also had already done my consultation with my chosen surgeon. I went through every possible step and the very last thing to do was just to get the insurance approval in order to schedule. Of course they take their time sending me the decision and then it comes in the mail weeks later saying "oh sorry you don't qualify, we deem this unnecessary." So after everything, this particular insurance group still denies people left and right regardless of qualification and urgency. Anyway, I kind of got my heart shattered after being certain my surgery would be soon and then this happens. I'm in a bit of a slump about it and I'm generally just frustrated, disappointed, and upset. I wish there was something I could do to get them to change their decision but it's really just not likely even after trying for an appeal. I would just resort to a gofundme but they make me feel sh*tty because I never make enough and it makes me feel like the donations go to waste. Does anyone have advice? Maybe just moral support or complaining about the company with me?

UPDATE: Now I'm just confused. Lol. I got that letter in the mail from the insurance plan stating they won't cover my surgery. Now, I just got an email from my surgeons office stating that they received approval from the insurance. What?? Attached to the email was the letter from the insurance confirming that they will cover it based off of the office's claim. I mean... yay! I'm really relieved if this is the case but I'm also really confused? Why did they tell me personally otherwise?