ABSA not following due process.

I really don't understand what's going on with ABSA. I sent money from my absa to a legitimate exchange platform Saturday morning, amount went through with no issues. I then tried to send money out an hour later and my account was put on hold. I've been calling in the last few days and was promised feedback but never received a call. I've spent R300 calling in to get my account taken off hold. Here's the craziest part - there is no report for any transaction on my account. There are no unresolved cases on my account. My account was put on hold but there are zero notes, comments or reasons as to why. This has really affected myself and my client negatively and I don't even have an answer as to why my account is on hold. This is really terrible ABSA.