Poor customer care

Follow up.to the query I logged yesterday about Absa bank saying that I owe them where as I don't after having to spend 40min on the line going back and forth with their consultant Linda and having to realize that they actually paid that money they claim that I owe to the wrong account, I was promised to be called back after contacting their credit dept and they did not, I had to call them back and I was told that the matter has been escalated to Solomon the team lead at closure departments by Linda, Solomon did not even bother to call me back to inform me that their credit department is not working over the weekend, he saw it fit to just not give me a courtesy call, I learned that when I called again yesterday to follow up as Linda did not call me back like he had promised. This I call poor, customer care since the fault is on their part. I want this matter resolved and closed for good, I don't think I would do business with Absa anymore in future. Now I have to wait for them to refer to it on Monday and wait again more days for feedback, where as I was promised feedback yesterday and no one got back to me until I followed up.