Funds at work - pension funds withdrwal

Momentum is so frustrating. I have continuously been calling them trying to withdraw my funds. I have submitted all the documents, but all I get are excuses. It really is unfair and ********* that you give to clients the run around when its time to payout a claim. My employer initiated the withdrawal process, which I then completed, I don't understand why the claim cannot be processed. Momentum is supposedly a reputable company, but its disheartening that clients are treated this way.