Issue on my provident fund and horrible customer service

On the 29th of April 2024 my husband made a claim of withdrawal on his provident fund and he was supposed to receive the money by the 24th of May 2024 but however days leading up to that we discovered that they had made a mistake and we were given another 14 days but when we called 3rd of June, we were told that there was another mistake and we will receive the money on the 18th of June. This problem has been going on for almost 2 months now and the agents are extremely rude when we call or follow up. This has been extremely frustrating emotionally. We would appreciate some sort of assistance!