Unsatisfactory service

When I pay by cheque card the pin is entered and I watch the screen for approval.<br> On 4th August 2015 immediately the pin was entered the till lady swung the machine to her side,<br> and said that the request failed and I must re-enter the pin.<br> I did so, expecting that an e-mail from F.N.B. would advise me if there been two <br> successive payments of the same value. <br> Fortunately FNB's computer system did detect this and automatically reversed one withdrawal.<br> <br> The next day I explained the matter to the P/Pay manager. Here's the response:<br> PP: Do you mean FNB charged you twice? <br> Me: No, one of the payments was reversed.<br> PP: So, what must I do?<br> Me: I'm merely bringing this to your intention to investigate the matter.<br> (Her phone rings and she talks to the other person for 5 or more minutes)<br> <br> PP: Leave your slip here and I'll check.<br> Me: I need the receipt, make a copy. (She's away more than ten minutes) <br> <br> PP: I'm only trying to help you.<br> Me: No, I'm helping you to find out why I was debited twice. <br> <br> She goes away again and returns with a form for me to complete. <br> Being lengthy, I told her I did not have more time to waste.<br> But, warned her that the matter would be reported on the internet.<br>