IELTS- British Council

I have written a test(IELTS) on the 14/09/2023 in Dlogan House Johannesburg and i encountered a problem during the duration of the test,i sent them a complaint and they promised to come back to me within 2 working days but they did not responded yet. I have tried to send another emails to remind them and I'm still waiting and do not know what to do next. We are paying lots of money for that test and they do not value our complaints I'm very disappointed in British Council because they advertise themselves as professionals