Swift payment overdue

Nedbank received an international payment via bank wire from my XM global account three weeks back and now going to a 4th week with no communication when they are going to credit my money in my bank account. when I call them they keep telling about me an application from SARB that they are waiting for. this is unacceptable. i'm so disappointed at Nedbank and i'm starting to feel that they just don't wanna pay my money intentionally.