Failure to correct financial system

SAGE is a service provider to Rustenburg Local Municipality (RLM). I have informed them and RLM that the calculation of the interest incentive on the municipal account of my client (***9) is incorrect. I have even forwarded my calculation to them. One Tshepo of SAGE is apparently dealing with the matter, but NOTHING is forthcoming. It is my humble view that this matter can be resolved in 10 minutes, but I have been waiting since the 4th of June 2025 to get it sorted. RLM does not want to grant the interest incentive based on my calculation and claims that the matter has been taken up with said Tshepo. I think if customer care is important to SAGE and RLM, this matter could have been resolved 15 days ago, but now RLM and/or SAGE are dragging feet, to the detriment of my client.