Mismanagement of work pension

I resigned from my employment effective 1 December 2024. Prior to leaving I filled in all documents for my work pension fund including supporting documents requested. 2 months after my resignation I received a call to confirm where I would like to keep my reserve retirement, which I did. 3 months after my resignation I did a follow up into why my pension is not paid yet, after numerous calls for days not getting assistance. I finally spoke to one of the consultant (call ref 2264q3d28) , I was informed that I do not have an active claim , I further enquired if they can check if my retirement balance is there. I was informed that I do not have a retirement fund with momentum and I should call my HR. I called HR who informed me that momentum indicated that they do not have my banking details. On 3 March 2025 I then went to Momentum offices in Centurion , they indicated that my pension fund was not paid as I did not indicate my banking details however when I asked them to review my original forms they confirmed that the banking details were included with proof of account on the forms. I am not sure why my pension fund was not processed as all the details were flourished 3 months ago when I resigned. I am deeply frustrated by the mismanagement of my pension resulting in no payment. Lack of assistance telephonically for days. Misinformation from consultants. I am yet to get any clarification on when my pension will be paid out.