Advice re: CraigsList, please? (see details)?

For whatever reason, I can't log into CL, as my account is 'on hold' according to the prompt I receive from them. There is no explanation offered. Their own 'help' pages don't cover the topic at all, and of course I can't log into the online help forum. The emails I send to CL only generate a form letter with no explanations at all. I'm not aware that I've done anything 'wrong' to cause this? I haven't broken any rules that I'm aware of? How can I resolve this? I have an apartment that I desperately need to rent out, but this flub prevents me. Anyone else ever encounter a problem like this?