Travel ban check after withdrawing a job offer

Hello,

Please, I need to check travel ban on my passport, but I saw that you asked for a valid passport and my passport will be expired on September 2018 is it ok?

Also, I need to speak about my problem, and please, I need an advice.

I was supposed to be hired by a medical centre recently, but after they took all my confidential documents and invited me to training sessions too, suddenly without a reason they told we withdraw the offer!!

So I criticized their hiring issue on google and they made a case against me for that, although I just explained the incident and didn't mention names or bad words or anything.

Now, I don't know what to do and totally lost as I didn't know if I wrote my experience which was very unfair and harming for me so I can be sued for it...

Please help!