Poor app function.

I've been struggling with my Woolies App for months now. Every time i call they say they going to escalate the issue, then they will call back, then I call again the same old story "we will escalate the issue". i have called numerous times. Where is the pleasure of using the App?. it is really frustrating, cant see balances, payment due. Maybe the CEO needs to check out his IT department because no one else is. Really appalling, same old story. What now customer care?