Locked out of Facebook?

[Lord Voldemort]

I've been locked out of Facebook, the following comes up:
Please Complete a Security Check
A confirmation code was sent to ---- 1. To confirm your identity, please enter the code here once it arrives.

Beforehand I completed a CAPTCHA Or whatever they're called. This isn't a temporary block as no option to tag friends or enter your birthday appears.
I looked at my phone and no message appeared and when it finally did I entered it but FB told me that it was incorrect/expired. I've checked it repeatedly and it is most definetly correct. I've tried to resend it but it says there is an error and it cannot resend.
What should I do?
I bought my phone in england and it has an English sim card but I'm in Vietnam at the moment and I'm not going home until September time.
Resolutions?

[Megan]

Clearly Facebook are more of the gryffindor kind of guys.

[sachin H a]

May be your cell no is not proper . I mean check the country code of your cell no . Thats reason you won't get msg .

[Sereid]

Why are you wasting time on Facebook? Go outside and interact with real people.

[Connie]

1) Post you sim card back to the uk and get someone to use it on on uinlocked phone and use the two step verification as intended...your roaming may not allow certain types of messages, and facebook certainly wont be sending premium international texts
2) speak to facebook support
3) set up another temporary facebook account
4) Live without it for a while...it is difficult but strangely liberating as well.

[abraXus]

people run into this problem are the people who either move from country to country (which flags the account as having been hacked) or the person is breaking the rules by creating more than one account

do either of those things apply to you?