Wesbank costing me and they still can't fix it

I moved banks from absa to fnb moving all my debit orders as well. After confirming that my car installment would be pulled from fnb I got a failed debit order msg from absa on the 26th saying Wesbank tried to pull an installment. Basically a failed debit order. Costing me 150 in fees. I call WesBank they apologize don't offer to refund me absas 150 failed debit order fee but I get them to setup a debit for that evening which they do. Come the 28th I get another failed debit msg from absa. Wesbank yet again attempted to pull an installment. Costing me another 150 and a the installment was already paid. So how the hell do I deal with this? They keep transferring me around like no one wants to deal with this issue. Whos going to fix this and give my money back?