You can reach them anyway. Just enter a bogus number when you get to the prompts (hit F for family class and then 00000000) and it'll tell you it can't find anything and ask if you want to speak to an agent
That was my first instinct lol...trust me, I already tried that multiple times but they never redirected me...since im overseas right now i have been using this number +16139444000 to contact them, after the long automated message and options, they essentially tell me goodbye. I don't know if the 1888 number is any different.