NMB Benefits cannot fix their error

I don't know why The Clicks Group is still using the NMG Benefits as their Employee Fund Administrators! Considering the number of complaints by former employees. I tried to submit my SARS tax return for this year and SARS informed me that it cannot be processed because a Tax Directive was issued without declaring the Lump Sum, how can Fund Administrators commit such an error? I phoned and send them emails asking them to correct this but no one is willing to assist me. I spoke to one Noluthando Ninela and Mxolisi Mhlanga who uselessly keep on saying that it is SARS who made a mistake, how so if there's no submission from NMG on my Tax Return? All other previous and current employers submitted my IRP5s except NMG Benefits. All SARS is asking for is to submit reconciliation for 2022-02. They cannot help me. Their consultants are very rude and don't mind hanging up on you while you still asking questions. It's been been 3 months since I asked NMG to rectify their mistake but i have been met with rude consultants who speak to people as they please. Where can I report this company? Is there an Ombuds for Fund Administrators like one?