Facebook confirmation code doesn't work

Just before Christmas I broke my phone. In the meantime I was using my iPad to access Facebook. They tell me there is suspicious activity on my account and I will need to enter a confirmation code that was sent SMS to my phone. 3-4 days passed before I was able to retrieve the code, then nothing. I asked for a new code, not even a new code. I was able to get a new code by typing "f" to 32665. But every time I type in their code the box goes blank or if I hit continue it tells me invalid code. Is there an answer out there? I know I am not the only one