Worst after service care ever

It has been a year and a half trying to submit my 2023 tax return to no avail. I have contacted Momentum via email, i have called them to inform them that the Directive on the IRP5 they sent me is giving an error on SARS efiling that it is invalid but this issue has not been rectified. I have gone to SARS and they have indicated that they can not do anything and that Momentum has to rectify the issue on their side so that i can submit my return. All of this i have told Momentum but i have not been helped