Blocked Banking Profile Without Permission

I am extremely disappointed in FNB. I used to have such positive things to say about them but recently I am experiencing more and more issues. My account has just been blocked by them without my permission. I am in a foreign country with no other access to cash except my FNB account. I informed them I will be abroad and was assured that they enabled my cards for foreign payments. Now no one at the bank can assist me, I've spoken to 3 consultants, all of which say they can't do a thing. My profile does not even work so I can't even transfer or make payments using online banking or the banking app. I am stranded here and need assistance urgently. This bank is truly terrible and I wish I switched banks before I left.