Bad service from my bank that always ask " how can we help you"

I had a loan at ABSA, but in 2016 I had a lot of "loose" debt, and decided to put all the small loans/ credit card etc into one amount as I lost track on all my debt. So I made a loan at FNB (since I bank with them) to settle all my little loans and have one amount. FNB gave me the money and promised me that the ABSA loan been settled. This was *June 2016* . To my surprise ABSA deducted money again *January 2018* for a loan. I went to FNB and they wanted to reverse and "block" ABSA. But I decided to go to ABSA instead to hear for myself why the money went off, thinking its a ****. Then I found out that the loan has never been settled, and when I asked them why they never emailed me any statements, or got into contact with me. They told me that my account was paid in advance so it is no need to inform me that the loan is still active. I was suppose to come check. Without any statements or any contact from them in 1,5 years. Yes I would just go around to banks and ask if I owe them. FNB paid them around R7000.00 short. Asking FNB why they promised me that the loan has been settled, I was told they got the figures on the credit bureau etc, etc. and that it was up to me to make sure it has been settled. Just the fact that i asked if I should now supervise them to make sure they did their job (settled the loan they promised me they sorted out) and getting an answer of "yes sir". And telling me it is all my fault... That just shows the level of customer service. Knowing now what I get from my bank that always ask "how can we help you?" and I been so happy with all this time. (I'm honestly thinking twice of making a home loan with them. As the current loan is only 4 years, and after that I will be out of debt (hopefully) so in 2,5 years I might buy a house. My home loan wont affect them, I know. Just the fact that I been banking with them for so long and the response i got, disappointing. Honestly just want to pay them finish asap. 3years max...)