Now, right when I posted this thread I went ahead and opened a ticket with AntPool and I received the following reply the next day.
We have applied your loss for the financial apartment in our company, they will process it soon.
And I will inform you when they pay the 2.5BTC to your wallet address.
Before that, you can release and just wait. You will get your 2.5 BTC loss back. Don't worry about that.
Looking forward to continuing to build your trust and bringing you more added values through our advanced technology and passion.
Beat Regards,
Hugh
Bitmain
Which is basically when I relaxed and knew I'm dealing with a good pool, and of course 4 days after that (or 6 days after the incident), I received my 2.5 BTC!
Now, the reason I'm apologizing is because I basically ignored the massive attention my thread got and everyone who tried to help me. Especially xhomerx10.. I didn't get email notifications nor notifications here on Bitcointalk and I completely forgot about the whole thing.
So yea, I'm sorry for ignoring everyone who tried to help me, I really appreciate it, thank you!
Oh, another thing, nope, I'm not affiliated with AntPool in any way, I'm just a normal user who did a mistake and needed actual help.
The reason I'm not posting this in the original thread is because it was locked by an admin, or that is what it tells me when I try to unlock it anyways.
Thanks everyone.
Wow, This is the first time to hear a very big fee for one transaction and it's unbelievable. I think you must have many bitcoins in your wallet.