Very poor service and complete lack of response

I flew British Airways business class to Phoenix USA from South Africa in the last week of February. Since then I have been trying to get my Avios points which were never allocated. I get a weekly auto response to say they are working “extremely hard” to resolve but really I don’t think they are doing anything. Every other airline automatically allocates your points or responds with allocated points in 48 hours. This has been 3 months! It’s impossible to find an escalation point or an actual human being to talk to and resolve!