You know who has a rock solid account secure customer service? Square Enix.
I tried to get access to my old FFXI account for around the 5th time over a couple years recently. This time I got so close I could taste it, and the guy on the phone seemed like he was playing charades, I was close, maybe I made up something with a word or two being real (I was super paranoid about putting real info on the internet, still am). I kept trying to give up but the guy kept motivating me to think about it and try again. He moved on to just needing the phone number along with the other attempts I may have missed or wasn't accurate enough on concerning the full address. I even ended up making a call to my mother asking if she remembered the number at that time. I just didn't care about messing around in FFXI for that one week bad enough. I was probably on the phone with him for 30 minutes, I was getting annoyed, maybe he wanted me on trying to remember things so he could take a break hah.
I tried to get access to my old FFXI account for around the 5th time over a couple years recently. This time I got so close I could taste it, and the guy on the phone seemed like he was playing charades, I was close, maybe I made up something with a word or two being real (I was super paranoid about putting real info on the internet, still am). I kept trying to give up but the guy kept motivating me to think about it and try again. He moved on to just needing the phone number along with the other attempts I may have missed or wasn't accurate enough on concerning the full address. I even ended up making a call to my mother asking if she remembered the number at that time. I just didn't care about messing around in FFXI for that one week bad enough. I was probably on the phone with him for 30 minutes, I was getting annoyed, maybe he wanted me on trying to remember things so he could take a break hah.