Hard Hold on Account With No Explanation

I've been using my FNB banking profile to transfer funds from my PayPal account for a year now and all of a sudden there's a hard hold on my account. I have wasted all of my airtime trying to figure out what the problem is and get bounced around to different departments with no one being able to tell me what is wrong. I rely on being able to transfer my funds on time and this is absolutely ridiculous. How can you just put a hard hold on someone's account without giving any indication why or of what I can do to fix it? This is the second time this has happened and it is extremely frustrating, and the last time the only way I could get someone to help me was to write a negative review, which I would prefer not to do. Unnecessarily stressful.