Extremely Unsatisfied Client

The company that I worked for has a retirement fund with Momentum. My contract ended in September and immediately our retirement claim was submitted by our HR in the same month. Waited 8 weeks for the funds to be paid and nothing. Only to be told that we were using an incorrect claim form. 4th of November a new submission was done and to date (09 December 2024), still no funds. Calling customer care line is fruitless because no one answers and you hold for over 3hrs daily. Emails sent no reply, WhatsApp line messaged no call back. What does one have to do to get their money at Momentum????