Lack of technical expertise at SARS

For more than four months now I have urgently been trying to log into the SARs filing system. The system recognises my username and even will supply a new password, but when trying to log in, it refuses with an error message saying it has two tax numbers to my name. In spite of at least three telephone interviews and three video calls to agents, the last one confirming that the problem was solved, and that I had to wait for 21 days (Heaven knows why) which I did, but now after 25 days, the problem is still there. It would appear that correcting some error, not made by a user but by the system to remove one item from a record seems to be far, far, beyond the technical expertise available in the SARS Department