Bad service from Old Mutual Super Fund

I want to raise the following complaint and do hope that someone can kindly assist? I resigned from my Employer on the 8th of January 2024. I phoned on the 6th of February 2024 to follow up on my claim from the Superfund, the call center agent assisted me with that. On the 13th February 2024 I received an SMS, stating that my Tax Directive was declined and that I must contact SARS to resolve this matter, which I did, the response from SARS was that my profile with them is 100 % and that the problem was with the submission from Old Mutual. They even gave me the error codes on the submissions: 1st submission - Error1452 - the wrong Tax year 2nd submission - Error5910 - Wrong accrual amount.

I phoned Old Mutual Call Center and spoke to 2 different agents acknowledging the mistake and they are busy escalating as we speak. When I phoned again after receiving the samet SMS again and phoned in again. The lady said that there is nothing on my profile "No Notes" and she will escalate it. My concern is, this was a mistake from Old Mutual side and now everytime I phone in it is costing a lot of money. Phoning again today the agent said my claim can not be processed due to error on their side It is not a good company to deal with