Poor Service, Bad attitude

I app**** for a loan with FNB and it was granted. The full amount was settled on 20 February 2015. On 25 February 2015 they still deducted the instalment. I contacted them and had very poor service as well as a bad attitude from all the ladies I spoke to. Namely Judy, Patience and Novondo. My questions was not answered properly, where I did get answers 2 different people gave me 2 different answers, and when asked how that is possible, the response was \I cannot answer for another person"yet they look at the same screen. I will never work with FNB loans again and will never recommend any of my friends or family to get a loan from them. I have been a loyal customer for many years"