I am still not assisted

i have complained about changing my banking details regarding my life cover i have with Standard bank, i am still not assisted. should my cover lapse i am going to take this up as i have been trying to change my details and you guys are failing. <br> <br> i was told last week that the relevant department will be calling me, and still nothing. what must i do to get my things sorted. this is really not on. i am so disappointed that after all these years with Standard bank, i need to log a complaint???seriously now