DISAPPOINTED CLIENT

I have been a loyal client to African Bank until recently when experienced a TERRIBLE customer service from them. I logged a query on the 3rd of July 2020 at their branch for them to fix my App since they generated me a username that contained a space. and they promised someone will call me before 7 days to fix the error from their IT Dep. After 2 full weeks of waiting, they call and apologize that they haven't allocated anyone to deal with my query but they are working on it. I still waited for someone to update me on that query and no one did until i took it upon myself to call customer care line to get answers, the consultant apologized as usual and told me my query is still being resolved but he will call to update me, and he did not come back to me. Now August is coming an end and they haven't resolved a mere query about my app. They promised to delete my app all together but when i re-register it still tells me that " the user exists" I am so frustrated and disappointed in how they deal with their customers. Today i called again and the agent put me on hold until the call hanged up and never came back to me. IF YOU CANT FIX AN APP, WHAT ABOUT THE DAY I WANT TO CLAIM OR ACCESS MY INVESTMENTS????? 2 MONTHS IS A VERY LONG TIME TO FIX AN APP AND TO KEEP A CUSTOMER WAITING.