Shocking lack of client orientation

I phoned into the BA Executive Club number for South Africa. Ended up apparently in a call centre in India. The call centre consultant's accent was very difficult to understand and the quality of the line was appalling. My problem was one of my bookings kept on giving an error message when I tried to load it onto the app on my phone, while the other was added without problem. The call centre consultant was talking over me all the time and telling me to do things which I had already told him I had done. He was of absolutely no help and when I asked him why this problem is occurring the best he could offer was that he is not the IT department.