Problems with App and Bank Statements

I complained more than 10days ago already in person to Standard Bank about the problem with my statement on my app. they gave me a REF number and all saying that the problem should be solved within less then 4days. it is more then 10days later and nothing has been done about it. i also did log a complain via the internet and they will send you a message saying that someone will contact you within 24 to 48hours, believe it or not still waiting for 10days as well. if you phone the call centre they will simply saying there is nothing they can do, that is apart from waiting for hours on the line to be help. please can someone advise me what to do, is there out there someone that can direct me to the right people or person to solve a very urgent matter. they did told me the day in the Bank that there is more people complaining about the same problem