Nedbank is ****. Theý are harrassing me and Im not even their client for their system failure.

Nedbank duplicated money in my account, I dont even bank with them but the person who sent money is their client. I called Nedbank,even went to their bank to reserve this. they said no they dont have anything that shows that duplication. after that they called me a month later, and told me that I owe them money and I must pay it back, I told them that I dont have it now, but I can pay it over a certain period. they said 3 months i refused they cam back and said 6 months and I said I cant its alot for me. now that Imfailing to pay the amount they set for me. they sending smses tellin me that they are takinfg me to court and I will have to pay for their lawyer fees aswel. this is not right. Im fustrated, I hate nedbank with all my heart and I will never recomend it to anyone. I dont bank with them for these kinda reasons. If i want to pay the amount over a period of 12 months why am i forced to pay something I cant afford, they dont even know how much I earn mos. and their consultants are rude as ****!!